[inspector] Refactor protocol-test.js

test/inspector/debugger/asm-js-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.
 
 // Flags: --validate-asm
 
+let {session, contextGroup, Protocol} = InspectorTest.start('Tests that asm-js scripts produce correct stack');
+
 function testFunction() {
   function generateAsmJs(stdlib, foreign, heap) {
     'use asm';
     var debugger_fun = foreign.call_debugger;
     function callDebugger() {
       debugger_fun();
     }
     function redirectFun() {
       callDebugger();
     }
     return redirectFun;
   }
 
   function call_debugger() {
     debugger;
   }
 
   var fun = generateAsmJs(this, {'call_debugger': call_debugger}, undefined);
   fun();
 }
 
-InspectorTest.addScript(testFunction.toString());
+contextGroup.addScript(testFunction.toString());
 
 Protocol.Debugger.enable();
 Protocol.Debugger.oncePaused().then(handleDebuggerPaused);
 Protocol.Runtime.evaluate({'expression': 'testFunction()'});
 
 function locationToString(callFrame) {
   var res = {functionName: callFrame.functionName};
   for (var attr in callFrame.functionLocation) {
     if (attr == 'scriptId') continue;
     res['function_'+attr] = callFrame.functionLocation[attr];
@@ skipping 31 matching lines @@
 {
   InspectorTest.log(
       'Result of evaluate (' + response.result.result.type + '):');
   var result_lines = response.result.result.value.split("\n");
   // Skip the second line, containing the 'evaluate' position.
   result_lines[1] = "    -- skipped --";
   InspectorTest.log(result_lines.join('\n'));
   InspectorTest.log('Finished!');
   InspectorTest.completeTest();
 }