Simplify handling of IC and megamorphic cache misses.

runtime/vm/stack_frame_test.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 // TODO(zra): Remove when tests are ready to enable.
 #include "platform/globals.h"
 #if !defined(TARGET_ARCH_ARM64)
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
@@ skipping 243 matching lines @@
       "class StackFrame {"
       "  static equals(var obj1, var obj2) native \"StackFrame_equals\";"
       "  static int frameCount() native \"StackFrame_frameCount\";"
       "  static int dartFrameCount() native \"StackFrame_dartFrameCount\";"
       "  static validateFrame(int index,"
       "                       String name) native \"StackFrame_validateFrame\";"
       "} "
       "class StackFrame2Test {"
       "  StackFrame2Test() {}"
       "  noSuchMethod(Invocation im) {"
-      "    /* We should have 8 general frames and 3 dart frames as follows:"
+      "    /* We should have 6 general frames and 4 dart frames as follows:"
       "     * exit frame"
       "     * dart frame corresponding to StackFrame.frameCount"
       "     * dart frame corresponding to StackFrame2Test.noSuchMethod"
-      "     * entry frame"
-      "     * exit frame"
       "     * frame for instance function invocation stub calling noSuchMethod"
       "     * dart frame corresponding to StackFrame2Test.testMain"
       "     * entry frame"
       "     */"
-      "    StackFrame.equals(9, StackFrame.frameCount());"
+      "    StackFrame.equals(6, StackFrame.frameCount());"
       "    StackFrame.equals(4, StackFrame.dartFrameCount());"
       "    StackFrame.validateFrame(0, \"StackFrame_validateFrame\");"
       "    StackFrame.validateFrame(1, \"StackFrame2Test_noSuchMethod\");"
       "    StackFrame.validateFrame(2, \"StackFrame2Test_foo\");"
       "    StackFrame.validateFrame(3, \"StackFrame2Test_testMain\");"
       "    return 5;"
       "  }"
       "  static testMain() {"
       "    var obj = new StackFrame2Test();"
       "    StackFrame.equals(5, obj.foo(101, 202));"
       "  }"
       "}";
   Dart_Handle lib = TestCase::LoadTestScript(
       kScriptChars,
       reinterpret_cast<Dart_NativeEntryResolver>(native_lookup));
   Dart_Handle cls = Dart_GetClass(lib, NewString("StackFrame2Test"));
   EXPECT_VALID(Dart_Invoke(cls, NewString("testMain"), 0, NULL));
 }
 
 }  // namespace dart
 
 #endif  // !defined(TARGET_ARCH_ARM64)