Revert most of r116862. It isn't quite the right fix for a memory leak in Preprocessor.

llvm-svn: 116864

1 files changed, 1 insertions, 5 deletions

diff --git a/clang/lib/Lex/PPDirectives.cpp b/clang/lib/Lex/PPDirectives.cpp
index 9138af064f2..b958d9e489f 100644
--- a/clang/lib/Lex/PPDirectives.cpp
+++ b/clang/lib/Lex/PPDirectives.cpp
@@ -58,11 +58,7 @@ MacroInfo *Preprocessor::CloneMacroInfo(const MacroInfo &MacroToClone) {
 ///  be reused for allocating new MacroInfo objects.
 void Preprocessor::ReleaseMacroInfo(MacroInfo *MI) {
   MICache.push_back(MI);
-  // We need to call 'Destroy' as opposed to 'FreeArgumentList' because
-  // the MICache object will get reused with a placement new.  This does
-  // not cause the underlying SmallVector to get it's memory released, so
-  // we need to call Destroy() here.
-  MI->Destroy();
+  MI->FreeArgumentList();
 }