- Add MemRegion::getMemorySpace()
- Change implementation of MemRegion::hasStackStorage()/hasHeapStorage() to use
  'getMemorySpace()'.  This avoids a double traversal up the region hierarchy
  and is simpler.
- Add MemRegion::hasHeapOrStackStorage() as a slightly more efficient
  alternative to 'hasStackStorage() || hasHeapStorage()'.

llvm-svn: 73977
diff --git a/clang/lib/Analysis/RegionStore.cpp b/clang/lib/Analysis/RegionStore.cpp
index 17e3323..77f5b7c 100644
--- a/clang/lib/Analysis/RegionStore.cpp
+++ b/clang/lib/Analysis/RegionStore.cpp
@@ -939,7 +939,7 @@
     }
   }  
 
-  if (R->hasStackStorage() || R->hasHeapStorage()) {
+  if (R->hasHeapOrStackStorage()) {
     // All stack variables are considered to have undefined values
     // upon creation.  All heap allocated blocks are considered to
     // have undefined values as well unless they are explicitly bound