- Remove the legacy debug protocol.

tests/standalone/debugger/basic_debugger_test.dart

-// 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.
-
-// This test forks a second vm process that runs this dart script as
-// a debug target.
-// Run this test with option --wire to see the json messages sent
-// between the processes.
-// Run this test with option --verbose to see the stdout and stderr output
-// of the debug target process.
-
-import "debug_lib.dart";
-
-bar(x) {
-  var localStr = "foo";
-  int localInt = 1;
-  double localDouble = 1.1;
-
-  print(x);
-}
-
-bam(a) => bar(a);
-
-foo(i) {
-  bar("baz");
-  print(i);
-}
-
-main(List<String> arguments) {
-  if (RunScript(testScript, arguments)) return;
-  print("Hello from debuggee");
-  foo(42);
-  bam("bam");
-  print("Hello again");
-}
-
-
-// Expected debugger events and commands.
-var testScript = [
-  MatchFrame(0, "main"),  // Top frame in trace is function "main".
-  Step(),
-  MatchFrame(0, "main"),  // Should still be in "main".
-  SetBreakpoint(19),  // Set breakpoint a line 19, in function bar.
-  Resume(),
-  MatchFrames(["bar", "foo", "main"]),
-  MatchFrame(1, "foo"),
-  MatchLocals({"localStr": '"foo"', "localInt": "1", "localDouble": "1.1", 
-      "x": '"baz"'}),
-  SetBreakpoint(22),  // Set breakpoint a line 22, in function bam.
-  Resume(),
-  MatchFrames(["bam", "main"]),
-  Resume(),
-  MatchFrames(["bar", "bam", "main"]),
-  Resume(),
-];