MemRegion:
- Have 'TypedRegion::getRValueType()' return a null QualType for 'id<...>'
  instead of aborting.
- Change 'TypedRegion::isBoundable()' to return true for all objects with a
  non-null RValueType (this may not be the final behavior).

llvm-svn: 66093
diff --git a/clang/lib/Analysis/MemRegion.cpp b/clang/lib/Analysis/MemRegion.cpp
index 8dd31b5..c304b65 100644
--- a/clang/lib/Analysis/MemRegion.cpp
+++ b/clang/lib/Analysis/MemRegion.cpp
@@ -123,8 +123,9 @@
   if (const BlockPointerType* PTy = T->getAsBlockPointerType())
     return PTy->getPointeeType();
 
-  assert(!T->getAsObjCQualifiedIdType() &&
-         "There is no rvalue type for id<...>");  
+  // There is no rvalue type of id<...>.
+  if (T->getAsObjCQualifiedIdType())
+    return QualType();
   
   assert(Loc::IsLocType(T) && "Non-location type.");
   return QualType();