[debug] remove JSON debug protocol related tests.

In most cases we can use the debug event listener as alternative.
Multithreaded tests are obsolete.

R=jgruber@chromium.org
BUG=v8:5510

Review-Url: https://codereview.chromium.org/2529883002
Cr-Commit-Position: refs/heads/master@{#41256}

include/v8-debug.h

@@ -170,11 +170,14 @@ class V8_EXPORT Debug {
   static bool CheckDebugBreak(Isolate* isolate);
 
   // Message based interface. The message protocol is JSON.
-  static void SetMessageHandler(Isolate* isolate, MessageHandler handler);
+  V8_DEPRECATED("No longer supported",
+                static void SetMessageHandler(Isolate* isolate,
+                                              MessageHandler handler));
 
+  V8_DEPRECATED("No longer supported",
                 static void SendCommand(Isolate* isolate,
                                         const uint16_t* command, int length,
-                          ClientData* client_data = NULL);
+                                        ClientData* client_data = NULL));
 
   /**
    * Run a JavaScript function in the debugger.
@@ -236,7 +239,8 @@ class V8_EXPORT Debug {
    * "Evaluate" debug command behavior currently is not specified in scope
    * of this method.
    */
-  static void ProcessDebugMessages(Isolate* isolate);
+  V8_DEPRECATED("No longer supported",
+                static void ProcessDebugMessages(Isolate* isolate));
 
   /**
    * Debugger is running in its own context which is entered while debugger

test/cctest/cctest.status

@@ -77,9 +77,6 @@
   'test-cpu-profiler/HotDeoptNoFrameEntry': [SKIP],
   'test-cpu-profiler/SampleWhenFrameIsNotSetup': [SKIP],
 
-  # BUG(v8:4358). Hangs flakily.
-  'test-debug/ProcessDebugMessagesThreaded': [SKIP],
-
   # BUG(2340). Preprocessing stack traces is disabled at the moment.
   'test-heap/PreprocessStackTrace': [FAIL],
 

test/inspector/runtime/evaluate-empty-stack-expected.txt

+Tests that Runtime.evaluate works with an empty stack
+{
+    id : <messageId>
+    result : {
+        result : {
+            type : string
+            value : snape kills dumbledore
+        }
+    }
+}

test/inspector/runtime/evaluate-empty-stack.js

+// Copyright 2016 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+print("Tests that Runtime.evaluate works with an empty stack");
+
+InspectorTest.addScript("var text = [48116210, 34460128, 1406661984071834]");
+
+var message = { expression: "text.map(x => x.toString(36)).join(' ')" };
+
+Protocol.Runtime.evaluate(message)
+  .then(message => InspectorTest.logMessage(message))
+  .then(() => InspectorTest.completeTest());