[analyzer] Malloc: Utter the name of the leaked variable.

Specifically, we use the last store of the leaked symbol in the leak diagnostic.
(No support for struct fields since the malloc checker doesn't track those
yet.)

+ Infrastructure to track the regions used in store evaluations.
This approach is more precise than iterating the store to
obtain the region bound to the symbol, which is used in RetainCount
checker. The region corresponds to what is uttered in the code in the
last store and we do not rely on the store implementation to support
this functionality.

llvm-svn: 153212

1 files changed, 0 insertions, 2 deletions

diff --git a/clang/lib/Analysis/ProgramPoint.cpp b/clang/lib/Analysis/ProgramPoint.cpp
index 3a0bbd5..3f711b4 100644
--- a/clang/lib/Analysis/ProgramPoint.cpp
+++ b/clang/lib/Analysis/ProgramPoint.cpp
@@ -34,8 +34,6 @@ ProgramPoint ProgramPoint::getProgramPoint(const Stmt *S, ProgramPoint::Kind K,
       return PostLoad(S, LC, tag);
     case ProgramPoint::PreStoreKind:
       return PreStore(S, LC, tag);
-    case ProgramPoint::PostStoreKind:
-      return PostStore(S, LC, tag);
     case ProgramPoint::PostLValueKind:
       return PostLValue(S, LC, tag);
     case ProgramPoint::PostPurgeDeadSymbolsKind: