Make SymbolicRegion subclass TypedRegion, for symbols usually have types, so 
do the symblic regions associated with them and we need them to be typed.

Current SymbolicRegion::getRValueType() method is very restricting. It may be
modified when we are more clear about what could be the types of symblic
regions.

BasicConstraintManager::Assume() is changed due to that now SymblicRegion is a
subclass of SubRegion.
 


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63844 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/RegionStore.cpp b/lib/Analysis/RegionStore.cpp
index 8d36d10..e640087 100644
--- a/lib/Analysis/RegionStore.cpp
+++ b/lib/Analysis/RegionStore.cpp
@@ -312,7 +312,8 @@
     break;
 
   case loc::SymbolValKind:
-    BaseR = MRMgr.getSymbolicRegion(cast<loc::SymbolVal>(&BaseL)->getSymbol());
+    BaseR = MRMgr.getSymbolicRegion(cast<loc::SymbolVal>(&BaseL)->getSymbol(),
+                                    StateMgr.getSymbolManager());
     break;
   
   case loc::GotoLabelKind:
@@ -701,7 +702,8 @@
   if (isa<loc::MemRegionVal>(L))
     R = cast<loc::MemRegionVal>(L).getRegion();
   else if (isa<loc::SymbolVal>(L))
-    R = MRMgr.getSymbolicRegion(cast<loc::SymbolVal>(L).getSymbol());
+    R = MRMgr.getSymbolicRegion(cast<loc::SymbolVal>(L).getSymbol(),
+                                StateMgr.getSymbolManager());
   
   if (R) {
     RegionBindingsTy B = GetRegionBindings(store);