[analyzer] Clean up a couple uses of getPointeeType().

No intended functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163219 91177308-0d34-0410-b5e6-96231b3b80d8

lib/StaticAnalyzer/Core/CallEvent.cpp

@@ -61,7 +61,7 @@ static bool isCallbackArg(SVal V, QualType T) {
   // Check if a callback is passed inside a struct (for both, struct passed by
   // reference and by value). Dig just one level into the struct for now.
 
-  if (isa<PointerType>(T) || isa<ReferenceType>(T))
+  if (T->isAnyPointerType() || T->isReferenceType())
     T = T->getPointeeType();
 
   if (const RecordType *RT = T->getAsStructureType()) {
@@ -408,6 +408,8 @@ RuntimeDefinition CXXInstanceCall::getRuntimeDefinition() const {
 
   // Is the type a C++ class? (This is mostly a defensive check.)
   QualType RegionType = DynType.getType()->getPointeeType();
+  assert(!RegionType.isNull() && "DynamicTypeInfo should always be a pointer.");
+
   const CXXRecordDecl *RD = RegionType->getAsCXXRecordDecl();
   if (!RD || !RD->hasDefinition())
     return RuntimeDefinition();

lib/StaticAnalyzer/Core/RegionStore.cpp

@@ -1575,12 +1575,8 @@ StoreRef RegionStoreManager::Bind(Store store, Loc L, SVal V) {
     // Binding directly to a symbolic region should be treated as binding
     // to element 0.
     QualType T = SR->getSymbol()->getType(Ctx);
-
-    // FIXME: Is this the right way to handle symbols that are references?
-    if (const PointerType *PT = T->getAs<PointerType>())
-      T = PT->getPointeeType();
-    else
-      T = T->getAs<ReferenceType>()->getPointeeType();
+    if (T->isAnyPointerType() || T->isReferenceType())
+      T = T->getPointeeType();
 
     R = GetElementZeroRegion(SR, T);
   }

lib/StaticAnalyzer/Core/SimpleSValBuilder.cpp

@@ -918,14 +918,8 @@ SVal SimpleSValBuilder::evalBinOpLN(ProgramStateRef state,
     else if (isa<SubRegion>(region)) {
       superR = region;
       index = rhs;
-      if (const PointerType *PT = resultTy->getAs<PointerType>()) {
-        elementType = PT->getPointeeType();
-      }
-      else {
-        const ObjCObjectPointerType *OT =
-          resultTy->getAs<ObjCObjectPointerType>();
-        elementType = OT->getPointeeType();
-      }
+      if (resultTy->isAnyPointerType())
+        elementType = resultTy->getPointeeType();
     }
 
     if (NonLoc *indexV = dyn_cast<NonLoc>(&index)) {