Don't record nested macro expansions in the preprocessing record,
it can only bring pain when dealing with preprocessor abuse (see: boost).

rdar://10898986

llvm-svn: 151427
diff --git a/clang/lib/Lex/Preprocessor.cpp b/clang/lib/Lex/Preprocessor.cpp
index 75ab89d..96dfe36 100644
--- a/clang/lib/Lex/Preprocessor.cpp
+++ b/clang/lib/Lex/Preprocessor.cpp
@@ -654,12 +654,10 @@
 
 CodeCompletionHandler::~CodeCompletionHandler() { }
 
-void Preprocessor::createPreprocessingRecord(
-                                      bool IncludeNestedMacroExpansions) {
+void Preprocessor::createPreprocessingRecord() {
   if (Record)
     return;
   
-  Record = new PreprocessingRecord(getSourceManager(),
-                                   IncludeNestedMacroExpansions);
+  Record = new PreprocessingRecord(getSourceManager());
   addPPCallbacks(Record);
 }