Remove MIPS support

runtime/vm/debugger_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"
-#if defined(TARGET_ARCH_MIPS)
-
-#include "vm/code_patcher.h"
-#include "vm/cpu.h"
-#include "vm/debugger.h"
-#include "vm/instructions.h"
-#include "vm/stub_code.h"
-
-namespace dart {
-
-#ifndef PRODUCT
-
-RawCode* CodeBreakpoint::OrigStubAddress() const {
-  return saved_value_;
-}
-
-
-void CodeBreakpoint::PatchCode() {
-  ASSERT(!is_enabled_);
-  Code& stub_target = Code::Handle();
-  switch (breakpoint_kind_) {
-    case RawPcDescriptors::kIcCall:
-    case RawPcDescriptors::kUnoptStaticCall:
-      stub_target = StubCode::ICCallBreakpoint_entry()->code();
-      break;
-    case RawPcDescriptors::kRuntimeCall:
-      stub_target = StubCode::RuntimeCallBreakpoint_entry()->code();
-      break;
-    default:
-      UNREACHABLE();
-  }
-  const Code& code = Code::Handle(code_);
-  saved_value_ = CodePatcher::GetStaticCallTargetAt(pc_, code);
-  CodePatcher::PatchStaticCallAt(pc_, code, stub_target);
-  is_enabled_ = true;
-}
-
-
-void CodeBreakpoint::RestoreCode() {
-  ASSERT(is_enabled_);
-  const Code& code = Code::Handle(code_);
-  switch (breakpoint_kind_) {
-    case RawPcDescriptors::kIcCall:
-    case RawPcDescriptors::kUnoptStaticCall:
-    case RawPcDescriptors::kRuntimeCall: {
-      CodePatcher::PatchStaticCallAt(pc_, code, Code::Handle(saved_value_));
-      break;
-    }
-    default:
-      UNREACHABLE();
-  }
-  is_enabled_ = false;
-}
-
-#endif  // !PRODUCT
-
-}  // namespace dart
-
-#endif  // defined TARGET_ARCH_MIPS