Parser: Report use counts once per feature

test/cctest/test-parsing.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 3551 matching lines @@
 
 TEST(UseAsmUseCount) {
   i::Isolate* isolate = CcTest::i_isolate();
   i::HandleScope scope(isolate);
   LocalContext env;
   int use_counts[v8::Isolate::kUseCounterFeatureCount] = {};
   global_use_counts = use_counts;
   CcTest::isolate()->SetUseCounterCallback(MockUseCounterCallback);
   CompileRun("\"use asm\";\n"
              "var foo = 1;\n"
-             "\"use asm\";\n"  // Only the first one counts.
              "function bar() { \"use asm\"; var baz = 1; }");
-  // Optimizing will double-count because the source is parsed twice.
-  CHECK_EQ(i::FLAG_always_opt ? 4 : 2, use_counts[v8::Isolate::kUseAsm]);
+  CHECK_LT(0, use_counts[v8::Isolate::kUseAsm]);
 }
 
 
 TEST(StrictModeUseCount) {
   i::Isolate* isolate = CcTest::i_isolate();
   i::HandleScope scope(isolate);
   LocalContext env;
   int use_counts[v8::Isolate::kUseCounterFeatureCount] = {};
   global_use_counts = use_counts;
   CcTest::isolate()->SetUseCounterCallback(MockUseCounterCallback);
@@ skipping 4198 matching lines @@
                               NULL};
   static const ParserFlag always_flags[] = {kAllowHarmonyAsyncAwait};
   // The preparser doesn't enforce the restriction, so turn it off.
   bool test_preparser = false;
   RunParserSyncTest(block_context_data, error_data, kError, NULL, 0,
                     always_flags, arraysize(always_flags), NULL, 0, false,
                     test_preparser);
   RunParserSyncTest(top_level_context_data, error_data, kSuccess, NULL, 0,
                     always_flags, arraysize(always_flags));
 }