Remove default monomorphic check code from functions and stubs that do not need it.

runtime/vm/object_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.
 
 #include "platform/globals.h"
 
 #include "vm/assembler.h"
 #include "vm/class_finalizer.h"
 #include "vm/dart_api_impl.h"
 #include "vm/dart_entry.h"
@@ skipping 2703 matching lines @@
 
 // Test for Code and Instruction object creation.
 VM_TEST_CASE(Code) {
   extern void GenerateIncrement(Assembler* assembler);
   Assembler _assembler_;
   GenerateIncrement(&_assembler_);
   const Function& function = Function::Handle(CreateFunction("Test_Code"));
   Code& code = Code::Handle(Code::FinalizeCode(function, &_assembler_));
   function.AttachCode(code);
   const Instructions& instructions = Instructions::Handle(code.instructions());
-  uword entry_point = instructions.UncheckedEntryPoint();
-  EXPECT_EQ(instructions.raw(),
-            Instructions::FromUncheckedEntryPoint(entry_point));
+  uword payload_start = instructions.PayloadStart();
+  EXPECT_EQ(instructions.raw(), Instructions::FromPayloadStart(payload_start));
   const Object& result = Object::Handle(
       DartEntry::InvokeFunction(function, Array::empty_array()));
   EXPECT_EQ(1, Smi::Cast(result).Value());
 }
 
 
 // Test for immutability of generated instructions. The test crashes with a
 // segmentation fault when writing into it.
 VM_TEST_CASE(CodeImmutability) {
   extern void GenerateIncrement(Assembler* assembler);
   Assembler _assembler_;
   GenerateIncrement(&_assembler_);
   const Function& function = Function::Handle(CreateFunction("Test_Code"));
   Code& code = Code::Handle(Code::FinalizeCode(function, &_assembler_));
   function.AttachCode(code);
   Instructions& instructions = Instructions::Handle(code.instructions());
-  uword entry_point = instructions.UncheckedEntryPoint();
-  EXPECT_EQ(instructions.raw(),
-            Instructions::FromUncheckedEntryPoint(entry_point));
+  uword payload_start = instructions.PayloadStart();
+  EXPECT_EQ(instructions.raw(), Instructions::FromPayloadStart(payload_start));
   // Try writing into the generated code, expected to crash.
-  *(reinterpret_cast<char*>(entry_point) + 1) = 1;
+  *(reinterpret_cast<char*>(payload_start) + 1) = 1;
   if (!FLAG_write_protect_code) {
     // Since this test is expected to crash, crash if write protection of code
     // is switched off.
     // TODO(regis, fschneider): Should this be FATAL() instead?
     OS::DebugBreak();
   }
 }
 
 
 // Test for Embedded String object in the instructions.
@@ skipping 1986 matching lines @@
   int32_t char_codes[] = {
     0, 0x0a, 0x0d, 0x7f, 0xff, 0xffff, 0xd800, 0xdc00, 0xdbff, 0xdfff
   };
 
   const String& str =
       String::Handle(String::FromUTF32(char_codes, ARRAY_SIZE(char_codes)));
   EXPECT(str.Equals(char_codes, ARRAY_SIZE(char_codes)));
 }
 
 }  // namespace dart