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/Frontend/CompilerInstance.cpp b/clang/lib/Frontend/CompilerInstance.cpp
index 8d84277..2ade1c1 100644
--- a/clang/lib/Frontend/CompilerInstance.cpp
+++ b/clang/lib/Frontend/CompilerInstance.cpp
@@ -257,8 +257,7 @@
   }
 
   if (PPOpts.DetailedRecord)
-    PP->createPreprocessingRecord(
-                                  PPOpts.DetailedRecordIncludesNestedMacroExpansions);
+    PP->createPreprocessingRecord();
 
   InitializePreprocessor(*PP, PPOpts, getHeaderSearchOpts(), getFrontendOpts());