Rename 'dart:debugger' to 'dart:developer'

runtime/lib/debugger.cc

-// Copyright (c) 2015, 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/bootstrap_natives.h"
-
-#include "include/dart_api.h"
-
-#include "vm/debugger.h"
-#include "vm/exceptions.h"
-#include "vm/native_entry.h"
-#include "vm/object.h"
-#include "vm/object_store.h"
-
-namespace dart {
-
-// dart:debugger.
-
-DEFINE_NATIVE_ENTRY(Debugger_breakHere, 0) {
-  Debugger* debugger = isolate->debugger();
-  if (!debugger) {
-    return Object::null();
-  }
-  debugger->BreakHere();
-  return Object::null();
-}
-
-
-DEFINE_NATIVE_ENTRY(Debugger_breakHereIf, 1) {
-  Debugger* debugger = isolate->debugger();
-  if (!debugger) {
-    return Object::null();
-  }
-  GET_NON_NULL_NATIVE_ARGUMENT(Bool, expr, arguments->NativeArgAt(0));
-  if (expr.value()) {
-    debugger->BreakHere();
-  }
-  return Object::null();
-}
-
-
-}  // namespace dart