Refactor style in ParseContext.h.

BUG=angleproject:995

Change-Id: I893785a068d0d5cf4afc18123896bf540e53a3e0
Reviewed-on: https://chromium-review.googlesource.com/270627
Reviewed-by: Zhenyao Mo <zmo@chromium.org>
Tested-by: Jamie Madill <jmadill@chromium.org>
diff --git a/src/compiler/translator/ParseContext.cpp b/src/compiler/translator/ParseContext.cpp
index 3736a79..5b8f209 100644
--- a/src/compiler/translator/ParseContext.cpp
+++ b/src/compiler/translator/ParseContext.cpp
@@ -653,7 +653,7 @@
     return false;
 }
 
-bool TParseContext::containsSampler(TType& type)
+bool TParseContext::containsSampler(const TType& type)
 {
     if (IsSampler(type.getBasicType()))
         return true;
@@ -750,12 +750,13 @@
 //
 // Returns true if there is an error.
 //
-bool TParseContext::arrayTypeErrorCheck(const TSourceLoc& line, TPublicType type)
+bool TParseContext::arrayTypeErrorCheck(const TSourceLoc& line, const TPublicType &type)
 {
     //
     // Can the type be an array?
     //
-    if (type.array) {
+    if (type.array)
+    {
         error(line, "cannot declare arrays of arrays", TType(type).getCompleteString().c_str());
         return true;
     }
@@ -889,7 +890,7 @@
 // These checks are common for all declarations starting a declarator list, and declarators that follow an empty
 // declaration.
 //
-bool TParseContext::singleDeclarationErrorCheck(TPublicType &publicType, const TSourceLoc &identifierLocation)
+bool TParseContext::singleDeclarationErrorCheck(const TPublicType &publicType, const TSourceLoc &identifierLocation)
 {
     switch (publicType.qualifier)
     {
@@ -1095,7 +1096,7 @@
 //
 // Returns true on error, false if no error
 //
-bool TParseContext::executeInitializer(const TSourceLoc &line, const TString &identifier, TPublicType &pType,
+bool TParseContext::executeInitializer(const TSourceLoc &line, const TString &identifier, const TPublicType &pType,
                                        TIntermTyped *initializer, TIntermNode **intermNode)
 {
     ASSERT(intermNode != nullptr);
@@ -1357,7 +1358,7 @@
     return intermediate.makeAggregate(symbol, identifierLocation);
 }
 
-TIntermAggregate *TParseContext::parseSingleInitDeclaration(TPublicType &publicType,
+TIntermAggregate *TParseContext::parseSingleInitDeclaration(const TPublicType &publicType,
                                                             const TSourceLoc &identifierLocation,
                                                             const TString &identifier,
                                                             const TSourceLoc &initLocation,
@@ -1539,7 +1540,7 @@
     return nullptr;
 }
 
-TIntermAggregate *TParseContext::parseInitDeclarator(TPublicType &publicType, TIntermAggregate *aggregateDeclaration,
+TIntermAggregate *TParseContext::parseInitDeclarator(const TPublicType &publicType, TIntermAggregate *aggregateDeclaration,
                                                      const TSourceLoc &identifierLocation, const TString &identifier,
                                                      const TSourceLoc &initLocation, TIntermTyped *initializer)
 {
@@ -1576,7 +1577,7 @@
     }
 }
 
-TIntermAggregate *TParseContext::parseArrayInitDeclarator(TPublicType &publicType,
+TIntermAggregate *TParseContext::parseArrayInitDeclarator(const TPublicType &publicType,
                                                           TIntermAggregate *aggregateDeclaration,
                                                           const TSourceLoc& identifierLocation,
                                                           const TString &identifier,
@@ -1668,8 +1669,9 @@
     }
 }
 
-TFunction *TParseContext::addConstructorFunc(TPublicType publicType)
+TFunction *TParseContext::addConstructorFunc(const TPublicType &publicTypeIn)
 {
+    TPublicType publicType = publicTypeIn;
     TOperator op = EOpNull;
     if (publicType.userDef)
     {