Remove \brief commands from doxygen comments.

We've been running doxygen with the autobrief option for a couple of
years now. This makes the \brief markers into our comments
redundant. Since they are a visual distraction and we don't want to
encourage more \brief markers in new code either, this patch removes
them all.

Patch produced by

  for i in $(git grep -l '\\brief'); do perl -pi -e 's/\\brief //g' $i & done

Differential Revision: https://reviews.llvm.org/D46290

llvm-svn: 331272
diff --git a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
index cbd597f..5f044f4 100644
--- a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
+++ b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
@@ -533,7 +533,7 @@
   Error materializeModule() override;
   std::vector<StructType *> getIdentifiedStructTypes() const override;
 
-  /// \brief Main interface to parsing a bitcode buffer.
+  /// Main interface to parsing a bitcode buffer.
   /// \returns true if an error occurred.
   Error parseBitcodeInto(Module *M, bool ShouldLazyLoadMetadata = false,
                          bool IsImporting = false);
@@ -1202,7 +1202,7 @@
   }
 }
 
-/// \brief This fills an AttrBuilder object with the LLVM attributes that have
+/// This fills an AttrBuilder object with the LLVM attributes that have
 /// been decoded from the given integer. This function must stay in sync with
 /// 'encodeLLVMAttributesForBitcode'.
 static void decodeLLVMAttributesForBitcode(AttrBuilder &B,
@@ -5705,7 +5705,7 @@
   }
 }
 
-/// \brief Get a lazy one-at-time loading module from bitcode.
+/// Get a lazy one-at-time loading module from bitcode.
 ///
 /// This isn't always used in a lazy context.  In particular, it's also used by
 /// \a parseModule().  If this is truly lazy, then we need to eagerly pull
diff --git a/llvm/lib/Bitcode/Reader/ValueList.cpp b/llvm/lib/Bitcode/Reader/ValueList.cpp
index 6bf5108..1ab22b5 100644
--- a/llvm/lib/Bitcode/Reader/ValueList.cpp
+++ b/llvm/lib/Bitcode/Reader/ValueList.cpp
@@ -32,7 +32,7 @@
 
 namespace {
 
-/// \brief A class for maintaining the slot number definition
+/// A class for maintaining the slot number definition
 /// as a placeholder for the actual definition for forward constants defs.
 class ConstantPlaceHolder : public ConstantExpr {
 public:
@@ -46,7 +46,7 @@
   // allocate space for exactly one operand
   void *operator new(size_t s) { return User::operator new(s, 1); }
 
-  /// \brief Methods to support type inquiry through isa, cast, and dyn_cast.
+  /// Methods to support type inquiry through isa, cast, and dyn_cast.
   static bool classof(const Value *V) {
     return isa<ConstantExpr>(V) &&
            cast<ConstantExpr>(V)->getOpcode() == Instruction::UserOp1;