[clang][bytecode][NFC] Only do CheckConstant checks for global pointers (llvm#113786)

We can check isStatic() early here and save ourselves some work.

Author: tbaederr

clang/lib/AST/ByteCode/Interp.cpp

@@ -400,7 +400,7 @@ bool CheckConstant(InterpState &S, CodePtr OpPC, const Descriptor *Desc) {
 }
 
 static bool CheckConstant(InterpState &S, CodePtr OpPC, const Pointer &Ptr) {
-  if (!Ptr.isBlockPointer())
+  if (!Ptr.isStatic() || !Ptr.isBlockPointer())
     return true;
   return CheckConstant(S, OpPC, Ptr.getDeclDesc());
 }