require the MAcroInfo objects are explcitly destroyed.

llvm-svn: 65179
diff --git a/clang/lib/Lex/Preprocessor.cpp b/clang/lib/Lex/Preprocessor.cpp
index 31a0406..7b34cb6 100644
--- a/clang/lib/Lex/Preprocessor.cpp
+++ b/clang/lib/Lex/Preprocessor.cpp
@@ -101,6 +101,7 @@
     // will be released when the BumpPtrAllocator 'BP' object gets
     // destroyed. We still need to run the dstor, however, to free
     // memory alocated by MacroInfo.
+    I->second->Destroy();
     I->second->~MacroInfo();    
     I->first->setHasMacroDefinition(false);
   }