Add caching for TextComment::isWhitespace(), ParagraphComment::isWhitespace().


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160452 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/Comment.cpp b/lib/AST/Comment.cpp
index e215e63..f3f4d9b 100644
--- a/lib/AST/Comment.cpp
+++ b/lib/AST/Comment.cpp
@@ -100,7 +100,7 @@
   llvm_unreachable("Unknown comment kind!");
 }
 
-bool TextComment::isWhitespace() const {
+bool TextComment::isWhitespaceNoCache() const {
   for (StringRef::const_iterator I = Text.begin(), E = Text.end();
        I != E; ++I) {
     const char C = *I;
@@ -111,7 +111,7 @@
   return true;
 }
 
-bool ParagraphComment::isWhitespace() const {
+bool ParagraphComment::isWhitespaceNoCache() const {
   for (child_iterator I = child_begin(), E = child_end(); I != E; ++I) {
     if (const TextComment *TC = dyn_cast<TextComment>(*I)) {
       if (!TC->isWhitespace())