Revert "Fix unit test for setting locale creating malformed HLSL shader code"

This reverts commit 5f662c0042703344eb0eef6d1c123e902e3aefbf.

Reason for revert: Some recent crashes related to streams, could be
related to this change.
https://bugs.chromium.org/p/chromium/issues/detail?id=932359

Original change's description:
> Fix unit test for setting locale creating malformed HLSL shader code
> Fix malformed HLSL shader code in other locales than classic
>
> Bug: angleproject:1433
> Change-Id: I30bad0bd0cfda465ec7200e48e12800d7d8efd26
> Reviewed-on: https://chromium-review.googlesource.com/c/1447862
> Reviewed-by: Geoff Lang <geofflang@chromium.org>
> Reviewed-by: Jamie Madill <jmadill@chromium.org>
> Commit-Queue: Jonah Ryan-Davis <jonahr@google.com>

TBR=geofflang@chromium.org,jmadill@chromium.org,jonahr@google.com

Bug: angleproject:1433
Change-Id: I28caa073b3996a95f3f233bed9dc91dc44263835
Reviewed-on: https://chromium-review.googlesource.com/c/1474624
Reviewed-by: Jonah Ryan-Davis <jonahr@google.com>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>
diff --git a/src/compiler/translator/AtomicCounterFunctionHLSL.cpp b/src/compiler/translator/AtomicCounterFunctionHLSL.cpp
index 9f8e4fd..63fe026 100644
--- a/src/compiler/translator/AtomicCounterFunctionHLSL.cpp
+++ b/src/compiler/translator/AtomicCounterFunctionHLSL.cpp
@@ -9,7 +9,6 @@
 
 #include "compiler/translator/AtomicCounterFunctionHLSL.h"
 
-#include "compiler/translator/Common.h"
 #include "compiler/translator/ImmutableStringBuilder.h"
 #include "compiler/translator/InfoSink.h"
 #include "compiler/translator/IntermNode.h"
@@ -93,7 +92,7 @@
 
 ImmutableString getAtomicCounterNameForBinding(int binding)
 {
-    std::stringstream counterName = sh::InitializeStream<std::stringstream>();
+    std::stringstream counterName;
     counterName << kAtomicCounterBaseName << binding;
     return ImmutableString(counterName.str());
 }
diff --git a/src/compiler/translator/BuiltInFunctionEmulatorGLSL.cpp b/src/compiler/translator/BuiltInFunctionEmulatorGLSL.cpp
index dc48527..7c619dd 100644
--- a/src/compiler/translator/BuiltInFunctionEmulatorGLSL.cpp
+++ b/src/compiler/translator/BuiltInFunctionEmulatorGLSL.cpp
@@ -5,7 +5,6 @@
 //
 
 #include "compiler/translator/BuiltInFunctionEmulatorGLSL.h"
-
 #include "angle_gl.h"
 #include "compiler/translator/BuiltInFunctionEmulator.h"
 #include "compiler/translator/VersionGLSL.h"
@@ -88,7 +87,7 @@
     };
     for (int dim = 2; dim <= 4; ++dim)
     {
-        std::stringstream ss = sh::InitializeStream<std::stringstream>();
+        std::stringstream ss;
         ss << "emu_precision vec" << dim << " atan_emu(emu_precision vec" << dim
            << " y, emu_precision vec" << dim << " x)\n"
            << "{\n"
diff --git a/src/compiler/translator/CallDAG.cpp b/src/compiler/translator/CallDAG.cpp
index 63c8cd0..9c0e2cf 100644
--- a/src/compiler/translator/CallDAG.cpp
+++ b/src/compiler/translator/CallDAG.cpp
@@ -171,7 +171,7 @@
 
         InitResult result = INITDAG_SUCCESS;
 
-        std::stringstream errorStream = sh::InitializeStream<std::stringstream>();
+        std::stringstream errorStream;
 
         while (!functionsToProcess.empty())
         {
diff --git a/src/compiler/translator/Common.h b/src/compiler/translator/Common.h
index 179cfe2..d0b8347 100644
--- a/src/compiler/translator/Common.h
+++ b/src/compiler/translator/Common.h
@@ -125,15 +125,6 @@
     return buffer;
 }
 
-// Initialize a new stream which must be imbued with the classic locale
-template <typename T>
-T InitializeStream()
-{
-    T stream;
-    stream.imbue(std::locale::classic());
-    return stream;
-}
-
 }  // namespace sh
 
 namespace std
diff --git a/src/compiler/translator/Compiler.cpp b/src/compiler/translator/Compiler.cpp
index 685a1ae..771d050 100644
--- a/src/compiler/translator/Compiler.cpp
+++ b/src/compiler/translator/Compiler.cpp
@@ -68,7 +68,7 @@
 {
     static int fileIndex = 0;
 
-    std::ostringstream o = sh::InitializeStream<std::ostringstream>();
+    std::ostringstream o;
     o << "corpus/" << fileIndex++ << ".sample";
     std::string s = o.str();
 
@@ -940,7 +940,7 @@
 
 void TCompiler::setResourceString()
 {
-    std::ostringstream strstream = sh::InitializeStream<std::ostringstream>();
+    std::ostringstream strstream;
 
     // clang-format off
     strstream << ":MaxVertexAttribs:" << mResources.MaxVertexAttribs
@@ -1107,7 +1107,7 @@
         if (depth >= mResources.MaxCallStackDepth)
         {
             // Trace back the function chain to have a meaningful info log.
-            std::stringstream errorStream = sh::InitializeStream<std::stringstream>();
+            std::stringstream errorStream;
             errorStream << "Call stack too deep (larger than " << mResources.MaxCallStackDepth
                         << ") with the following call chain: "
                         << record.node->getFunction()->name();
diff --git a/src/compiler/translator/DirectiveHandler.cpp b/src/compiler/translator/DirectiveHandler.cpp
index e468fd4..46e67f5 100644
--- a/src/compiler/translator/DirectiveHandler.cpp
+++ b/src/compiler/translator/DirectiveHandler.cpp
@@ -10,7 +10,6 @@
 
 #include "angle_gl.h"
 #include "common/debug.h"
-#include "compiler/translator/Common.h"
 #include "compiler/translator/Diagnostics.h"
 
 namespace sh
@@ -191,7 +190,7 @@
     }
     else
     {
-        std::stringstream stream = sh::InitializeStream<std::stringstream>();
+        std::stringstream stream;
         stream << version;
         std::string str = stream.str();
         mDiagnostics.error(loc, "version number not supported", str.c_str());
diff --git a/src/compiler/translator/InfoSink.cpp b/src/compiler/translator/InfoSink.cpp
index e8a8453..fc19d7e 100644
--- a/src/compiler/translator/InfoSink.cpp
+++ b/src/compiler/translator/InfoSink.cpp
@@ -69,7 +69,7 @@
 
 void TInfoSinkBase::location(int file, int line)
 {
-    TPersistStringStream stream = sh::InitializeStream<TPersistStringStream>();
+    TPersistStringStream stream;
     if (line)
         stream << file << ":" << line;
     else
diff --git a/src/compiler/translator/InfoSink.h b/src/compiler/translator/InfoSink.h
index 100d06e..44f0e83 100644
--- a/src/compiler/translator/InfoSink.h
+++ b/src/compiler/translator/InfoSink.h
@@ -41,7 +41,7 @@
     template <typename T>
     TInfoSinkBase &operator<<(const T &t)
     {
-        TPersistStringStream stream = sh::InitializeStream<TPersistStringStream>();
+        TPersistStringStream stream;
         stream << t;
         sink.append(stream.str());
         return *this;
@@ -79,7 +79,7 @@
         // does not have a fractional part, the default precision format does
         // not write the decimal portion which gets interpreted as integer by
         // the compiler.
-        TPersistStringStream stream = sh::InitializeStream<TPersistStringStream>();
+        TPersistStringStream stream;
         if (fractionalPart(f) == 0.0f)
         {
             stream.precision(1);
diff --git a/src/compiler/translator/OutputHLSL.cpp b/src/compiler/translator/OutputHLSL.cpp
index e0412cb..84e32dd 100644
--- a/src/compiler/translator/OutputHLSL.cpp
+++ b/src/compiler/translator/OutputHLSL.cpp
@@ -39,7 +39,7 @@
 
 TString ArrayHelperFunctionName(const char *prefix, const TType &type)
 {
-    TStringStream fnName = sh::InitializeStream<TStringStream>();
+    TStringStream fnName;
     fnName << prefix << "_";
     if (type.isArray())
     {
@@ -132,7 +132,7 @@
 constexpr int kZeroCount = 256;
 std::string DefineZeroArray()
 {
-    std::stringstream ss = sh::InitializeStream<std::stringstream>();
+    std::stringstream ss;
     // For 'static', if the declaration does not include an initializer, the value is set to zero.
     // https://docs.microsoft.com/en-us/windows/desktop/direct3dhlsl/dx-graphics-hlsl-variable-syntax
     ss << "static uint " << kZeros << "[" << kZeroCount << "];\n";
@@ -141,7 +141,7 @@
 
 std::string GetZeroInitializer(size_t size)
 {
-    std::stringstream ss = sh::InitializeStream<std::stringstream>();
+    std::stringstream ss;
     size_t quotient = size / kZeroCount;
     size_t reminder = size % kZeroCount;
 
@@ -416,7 +416,7 @@
         init += indentString + "{\n";
         for (unsigned int arrayIndex = 0u; arrayIndex < type.getOutermostArraySize(); ++arrayIndex)
         {
-            TStringStream indexedString = sh::InitializeStream<TStringStream>();
+            TStringStream indexedString;
             indexedString << name << "[" << arrayIndex << "]";
             TType elementType = type;
             elementType.toArrayElementType();
@@ -891,8 +891,8 @@
 
         out << kImage2DFunctionString << "\n";
 
-        std::ostringstream systemValueDeclaration  = sh::InitializeStream<std::ostringstream>();
-        std::ostringstream glBuiltinInitialization = sh::InitializeStream<std::ostringstream>();
+        std::ostringstream systemValueDeclaration;
+        std::ostringstream glBuiltinInitialization;
 
         systemValueDeclaration << "\nstruct CS_INPUT\n{\n";
         glBuiltinInitialization << "\nvoid initGLBuiltins(CS_INPUT input)\n"
@@ -1900,7 +1900,7 @@
         {
             int index = nodeBinary->getRight()->getAsConstantUnion()->getIConst(0);
 
-            std::stringstream prefixSink = sh::InitializeStream<std::stringstream>();
+            std::stringstream prefixSink;
             prefixSink << samplerNamePrefixFromStruct(nodeBinary->getLeft()) << "_" << index;
             return ImmutableString(prefixSink.str());
         }
@@ -1910,7 +1910,7 @@
             int index           = nodeBinary->getRight()->getAsConstantUnion()->getIConst(0);
             const TField *field = s->fields()[index];
 
-            std::stringstream prefixSink = sh::InitializeStream<std::stringstream>();
+            std::stringstream prefixSink;
             prefixSink << samplerNamePrefixFromStruct(nodeBinary->getLeft()) << "_"
                        << field->name();
             return ImmutableString(prefixSink.str());
diff --git a/src/compiler/translator/ParseContext.cpp b/src/compiler/translator/ParseContext.cpp
index 4b92375..fcaca76 100644
--- a/src/compiler/translator/ParseContext.cpp
+++ b/src/compiler/translator/ParseContext.cpp
@@ -611,7 +611,7 @@
         return true;
     }
 
-    std::stringstream reasonStream = sh::InitializeStream<std::stringstream>();
+    std::stringstream reasonStream;
     reasonStream << "l-value required";
     if (!message.empty())
     {
@@ -902,7 +902,7 @@
     {
         if (ContainsSampler(pType.userDef))
         {
-            std::stringstream reasonStream = sh::InitializeStream<std::stringstream>();
+            std::stringstream reasonStream;
             reasonStream << reason << " (structure contains a sampler)";
             std::string reasonStr = reasonStream.str();
             error(line, reasonStr.c_str(), getBasicString(pType.type));
@@ -3066,7 +3066,7 @@
                 if (mComputeShaderLocalSize[i] < 1 ||
                     mComputeShaderLocalSize[i] > maxComputeWorkGroupSizeValue)
                 {
-                    std::stringstream reasonStream = sh::InitializeStream<std::stringstream>();
+                    std::stringstream reasonStream;
                     reasonStream << "invalid value: Value must be at least 1 and no greater than "
                                  << maxComputeWorkGroupSizeValue;
                     const std::string &reason = reasonStream.str();
@@ -3891,7 +3891,7 @@
     // one to the field's struct nesting.
     if (1 + field.type()->getDeepestStructNesting() > kWebGLMaxStructNesting)
     {
-        std::stringstream reasonStream = sh::InitializeStream<std::stringstream>();
+        std::stringstream reasonStream;
         if (field.type()->getStruct()->symbolType() == SymbolType::Empty)
         {
             // This may happen in case there are nested struct definitions. While they are also
@@ -4085,7 +4085,7 @@
     ASSERT(index >= 0);
     if (index >= arraySize)
     {
-        std::stringstream reasonStream = sh::InitializeStream<std::stringstream>();
+        std::stringstream reasonStream;
         reasonStream << reason << " '" << index << "'";
         std::string token = reasonStream.str();
         outOfRangeError(outOfRangeIndexIsError, location, reason, "[]");
@@ -4387,7 +4387,7 @@
     checkLayoutQualifierSupported(qualifierTypeLine, qualifierType, 310);
     if (intValue < 1)
     {
-        std::stringstream reasonStream = sh::InitializeStream<std::stringstream>();
+        std::stringstream reasonStream;
         reasonStream << "out of range: " << getWorkGroupSizeString(index) << " must be positive";
         std::string reason = reasonStream.str();
         error(intValueLine, reason.c_str(), intValueString.c_str());
@@ -5672,7 +5672,7 @@
                 int offsetValue = values[i].getIConst();
                 if (offsetValue > maxOffsetValue || offsetValue < minOffsetValue)
                 {
-                    std::stringstream tokenStream = sh::InitializeStream<std::stringstream>();
+                    std::stringstream tokenStream;
                     tokenStream << offsetValue;
                     std::string token = tokenStream.str();
                     error(offset->getLine(), "Texture offset value out of valid range",
diff --git a/src/compiler/translator/Symbol.cpp b/src/compiler/translator/Symbol.cpp
index 52ad4f3..babda8c 100644
--- a/src/compiler/translator/Symbol.cpp
+++ b/src/compiler/translator/Symbol.cpp
@@ -115,7 +115,7 @@
         const TType *fieldType = field->type();
         if (IsSampler(fieldType->getBasicType()) || fieldType->isStructureContainingSamplers())
         {
-            std::stringstream fieldName = sh::InitializeStream<std::stringstream>();
+            std::stringstream fieldName;
             fieldName << namePrefix << "_" << field->name();
             TString fieldApiName = apiNamePrefix + ".";
             fieldApiName += field->name().data();
diff --git a/src/compiler/translator/Types.cpp b/src/compiler/translator/Types.cpp
index 9d0374b..6fc5875 100644
--- a/src/compiler/translator/Types.cpp
+++ b/src/compiler/translator/Types.cpp
@@ -756,7 +756,7 @@
             elementType.toArrayElementType();
             for (unsigned int arrayIndex = 0u; arrayIndex < getOutermostArraySize(); ++arrayIndex)
             {
-                std::stringstream elementName = sh::InitializeStream<std::stringstream>();
+                std::stringstream elementName;
                 elementName << namePrefix << "_" << arrayIndex;
                 TStringStream elementApiName;
                 elementApiName << apiNamePrefix << "[" << arrayIndex << "]";
diff --git a/src/compiler/translator/ValidateOutputs.cpp b/src/compiler/translator/ValidateOutputs.cpp
index 9880255..8115523 100644
--- a/src/compiler/translator/ValidateOutputs.cpp
+++ b/src/compiler/translator/ValidateOutputs.cpp
@@ -119,7 +119,7 @@
                 const size_t offsetLocation = location + elementIndex;
                 if ((*validOutputsToUse)[offsetLocation])
                 {
-                    std::stringstream strstr = sh::InitializeStream<std::stringstream>();
+                    std::stringstream strstr;
                     strstr << "conflicting output locations with previously defined output '"
                            << (*validOutputsToUse)[offsetLocation]->getName() << "'";
                     error(*symbol, strstr.str().c_str(), diagnostics);
diff --git a/src/compiler/translator/ValidateVaryingLocations.cpp b/src/compiler/translator/ValidateVaryingLocations.cpp
index 394e35c..55f6dbe 100644
--- a/src/compiler/translator/ValidateVaryingLocations.cpp
+++ b/src/compiler/translator/ValidateVaryingLocations.cpp
@@ -83,7 +83,7 @@
             const int offsetLocation = location + elementIndex;
             if (locationMap.find(offsetLocation) != locationMap.end())
             {
-                std::stringstream strstr = sh::InitializeStream<std::stringstream>();
+                std::stringstream strstr;
                 strstr << "'" << varying->getName()
                        << "' conflicting location with previously defined '"
                        << locationMap[offsetLocation]->getName() << "'";
diff --git a/src/compiler/translator/blocklayout.cpp b/src/compiler/translator/blocklayout.cpp
index 7d0609e..58c4f7b 100644
--- a/src/compiler/translator/blocklayout.cpp
+++ b/src/compiler/translator/blocklayout.cpp
@@ -11,7 +11,6 @@
 
 #include "common/mathutil.h"
 #include "common/utilities.h"
-#include "compiler/translator/Common.h"
 
 namespace sh
 {
@@ -133,7 +132,7 @@
 
 std::string CollapseNameStack(const std::vector<std::string> &nameStack)
 {
-    std::stringstream strstr = sh::InitializeStream<std::stringstream>();
+    std::stringstream strstr;
     for (const std::string &part : nameStack)
     {
         strstr << part;
@@ -416,7 +415,7 @@
 void VariableNameVisitor::enterArrayElement(const ShaderVariable &arrayVar,
                                             unsigned int arrayElement)
 {
-    std::stringstream strstr = sh::InitializeStream<std::stringstream>();
+    std::stringstream strstr;
     strstr << "[" << arrayElement << "]";
     std::string elementString = strstr.str();
     mNameStack.push_back(elementString);
diff --git a/src/compiler/translator/tree_ops/EmulatePrecision.cpp b/src/compiler/translator/tree_ops/EmulatePrecision.cpp
index ba19bd1..ca4cf4a 100644
--- a/src/compiler/translator/tree_ops/EmulatePrecision.cpp
+++ b/src/compiler/translator/tree_ops/EmulatePrecision.cpp
@@ -174,7 +174,7 @@
 
 std::string RoundingHelperWriterESSL::getTypeString(const char *glslType)
 {
-    std::stringstream typeStrStr = sh::InitializeStream<std::stringstream>();
+    std::stringstream typeStrStr;
     typeStrStr << "highp " << glslType;
     return typeStrStr.str();
 }
@@ -257,7 +257,7 @@
 void RoundingHelperWriterGLSL::writeVectorRoundingHelpers(TInfoSinkBase &sink,
                                                           const unsigned int size)
 {
-    std::stringstream vecTypeStrStr = sh::InitializeStream<std::stringstream>();
+    std::stringstream vecTypeStrStr;
     vecTypeStrStr << "vec" << size;
     std::string vecType = getTypeString(vecTypeStrStr.str().c_str());
 
@@ -287,7 +287,7 @@
                                                          const unsigned int rows,
                                                          const char *functionName)
 {
-    std::stringstream matTypeStrStr = sh::InitializeStream<std::stringstream>();
+    std::stringstream matTypeStrStr;
     matTypeStrStr << "mat" << columns;
     if (rows != columns)
     {
@@ -379,7 +379,7 @@
 void RoundingHelperWriterHLSL::writeVectorRoundingHelpers(TInfoSinkBase &sink,
                                                           const unsigned int size)
 {
-    std::stringstream vecTypeStrStr = sh::InitializeStream<std::stringstream>();
+    std::stringstream vecTypeStrStr;
     vecTypeStrStr << "float" << size;
     std::string vecType = vecTypeStrStr.str();
 
@@ -409,7 +409,7 @@
                                                          const unsigned int rows,
                                                          const char *functionName)
 {
-    std::stringstream matTypeStrStr = sh::InitializeStream<std::stringstream>();
+    std::stringstream matTypeStrStr;
     matTypeStrStr << "float" << columns << "x" << rows;
     std::string matType = matTypeStrStr.str();
 
@@ -744,7 +744,7 @@
                                                                              TIntermTyped *right,
                                                                              const char *opNameStr)
 {
-    std::stringstream strstr = sh::InitializeStream<std::stringstream>();
+    std::stringstream strstr;
     if (left->getPrecision() == EbpMedium)
         strstr << "angle_compound_" << opNameStr << "_frm";
     else