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

runtime/vm/assembler_mips.cc

 // Copyright (c) 2013, 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 "vm/globals.h"  // NOLINT
 #if defined(TARGET_ARCH_MIPS)
 
 #include "vm/assembler.h"
 #include "vm/longjump.h"
 #include "vm/runtime_entry.h"
@@ skipping 842 matching lines @@
 void Assembler::LeaveStubFrame() {
   LeaveDartFrame();
 }
 
 
 void Assembler::LeaveStubFrameAndReturn(Register ra) {
   LeaveDartFrameAndReturn(ra);
 }
 
 
-void Assembler::NoMonomorphicCheckedEntry() {
-  buffer_.Reset();
-  break_(0);
-  break_(0);
-  break_(0);
-  ASSERT(CodeSize() == Instructions::kCheckedEntryOffset);
-}
-
-
 // T0 receiver, S5 guarded cid as Smi
 void Assembler::MonomorphicCheckedEntry() {
+  ASSERT(has_single_entry_point_);
+  has_single_entry_point_ = false;
   bool saved_use_far_branches = use_far_branches();
   set_use_far_branches(false);
 
   Label have_cid, miss;
   Bind(&miss);
   lw(T9, Address(THR, Thread::monomorphic_miss_entry_offset()));
   jr(T9);
 
   Comment("MonomorphicCheckedEntry");
   ASSERT(CodeSize() == Instructions::kCheckedEntryOffset);
@@ skipping 511 matching lines @@
   Label stop;
   b(&stop);
   Emit(reinterpret_cast<int32_t>(message));
   Bind(&stop);
   break_(Instr::kStopMessageCode);
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_MIPS