8339113: AccessFlags can be u2 in metadata

src/hotspot/cpu/ppc/templateInterpreterGenerator_ppc.cpp

@@ -144,7 +144,7 @@ address TemplateInterpreterGenerator::generate_slow_signature_handler() {
     // TODO PPC port: requires change in shared code.
     //assert(in_bytes(AccessFlags::flags_offset()) == 0,
     //       "MethodDesc._access_flags == MethodDesc._access_flags._flags");
-    // _access_flags must be a 32 bit value. ???
+    // _access_flags must be a 16 bit value.
     assert(sizeof(AccessFlags) == 2, "wrong size");
     __ lha(R11_scratch1/*access_flags*/, method_(access_flags));
     // testbit with condition register.

src/hotspot/share/opto/library_call.cpp

@@ -3926,7 +3926,7 @@ bool LibraryCallKit::inline_native_Class_query(vmIntrinsics::ID id) {
     break;
   case vmIntrinsics::_getClassAccessFlags:
     prim_return_value = intcon(JVM_ACC_ABSTRACT | JVM_ACC_FINAL | JVM_ACC_PUBLIC);
-    return_type = TypeInt::CHAR;  // not bool!  6297094
+    return_type = TypeInt::CHAR;
     break;
   default:
     fatal_unexpected_iid(id);