Comment parsing: use CharInfo.h

This also gives us 0.2% speedup on '-fsyntax-only -Wdocumentation' time for
a testcase that consists of all Clang headers.

llvm-svn: 174810

1 files changed, 1 insertions, 5 deletions

diff --git a/clang/lib/AST/CommentParser.cpp b/clang/lib/AST/CommentParser.cpp
index 5f45125bdce..952c10c4a8b 100644
--- a/clang/lib/AST/CommentParser.cpp
+++ b/clang/lib/AST/CommentParser.cpp
@@ -11,6 +11,7 @@
 #include "clang/AST/CommentCommandTraits.h"
 #include "clang/AST/CommentDiagnostic.h"
 #include "clang/AST/CommentSema.h"
+#include "clang/Basic/CharInfo.h"
 #include "clang/Basic/SourceManager.h"
 #include "llvm/Support/ErrorHandling.h"
 
@@ -109,11 +110,6 @@ class TextTokenRetokenizer {
     return true;
   }
 
-  static bool isWhitespace(char C) {
-    return C == ' ' || C == '\n' || C == '\r' ||
-           C == '\t' || C == '\f' || C == '\v';
-  }
-
   void consumeWhitespace() {
     while (!isEnd()) {
       if (isWhitespace(peek()))