DevTools: merge ScriptCallStack and ScriptAsyncCallStack, move CallStacks from console to Runtime.

third_party/WebKit/LayoutTests/http/tests/inspector/stacktraces/resources/stacktrace-test.js

 function test() {
     InspectorTest.addConsoleSniffer(addMessage);
 
     function addMessage(message) {
         var viewMessages = WebInspector.ConsolePanel._view()._visibleViewMessages;
         for (var i = 0; i < viewMessages.length; ++i) {
             var m = viewMessages[i].consoleMessage();
             InspectorTest.addResult("Message[" + i + "]: " + WebInspector.displayNameForURL(m.url) + ":" + m.line + " " + m.messageText);
-            var trace = m.stackTrace;
+            var trace = m.stackTrace ? m.stackTrace.callFrames : null;
             if (!trace) {
                 InspectorTest.addResult("FAIL: no stack trace attached to message #" + i);
             } else {
                 InspectorTest.addResult("Stack Trace:\n");
                 InspectorTest.addResult("    url: " + trace[0].url);
                 InspectorTest.addResult("    function: " + trace[0].functionName);
                 InspectorTest.addResult("    line: " + trace[0].lineNumber);
             }
         }
         InspectorTest.completeTest();
     }
     InspectorTest.evaluateInPage("thisTest()");
 }