[objcxx] Fix `std::addressof` for `id`.

clang/lib/Sema/SemaChecking.cpp

case Builtin::BIas_const: {
     // where T and U only differ in qualification.
     if (checkArgCount(*this, TheCall, 1))
       return ExprError();
     QualType Param = FDecl->getParamDecl(0)->getType();
     QualType Result = FDecl->getReturnType();
     bool ReturnsPointer = BuiltinID == Builtin::BIaddressof ||
                           BuiltinID == Builtin::BI__addressof;
     if (!(Param->isReferenceType() &&
-          (ReturnsPointer ? Result->isPointerType()
+          (ReturnsPointer ? Result->isAnyPointerType()
                           : Result->isReferenceType()) &&
           Context.hasSameUnqualifiedType(Param->getPointeeType(),
                                          Result->getPointeeType()))) {
       Diag(TheCall->getBeginLoc(), diag::err_builtin_move_forward_unsupported)
           << FDecl;
       return ExprError();
     }
     break;

clang/test/SemaObjCXX/unsupported-signature-std-addressof-id.mm

+// RUN: %clang_cc1 -fsyntax-only -fobjc-arc -fobjc-runtime-has-weak -verify %s
+// expected-no-diagnostics
+
+namespace std {
+    template <class T>
+    T* addressof(T&);
+}
+
+void f(id obj) {
+    (void)std::addressof(*obj);
+}