Refine MemRegions for blocks.  Add a new region called
'BlockDataRegion' to distinguish between the code associated with a
block (which is represented by 'BlockTextRegion') and an instance of a
block, which includes both code and data.  'BlockDataRegion' has an
associated LocationContext, which can be used to eventually model the
lifetime of a block object once LocationContexts can represent scopes
(and iterations around a loop, etc.).

llvm-svn: 89900
diff --git a/clang/lib/Analysis/RegionStore.cpp b/clang/lib/Analysis/RegionStore.cpp
index 16a4690..deb6c07 100644
--- a/clang/lib/Analysis/RegionStore.cpp
+++ b/clang/lib/Analysis/RegionStore.cpp
@@ -714,6 +714,7 @@
 
     case MemRegion::FunctionTextRegionKind:
     case MemRegion::BlockTextRegionKind:
+    case MemRegion::BlockDataRegionKind:
       // Technically this can happen if people do funny things with casts.
       return UnknownVal();
 
@@ -860,6 +861,7 @@
 
     case MemRegion::FunctionTextRegionKind:
     case MemRegion::BlockTextRegionKind:
+    case MemRegion::BlockDataRegionKind:
       // Technically this can happen if people do funny things with casts.
       return UnknownVal();