[inspector] Refactor protocol-test.js

test/inspector/debugger/continue-to-location-target-call-frames.js

 // Copyright 2017 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.
 
-InspectorTest.log('Check that continue-to-location works with different strategies.');
+let {session, contextGroup, Protocol} = InspectorTest.start('Check that continue-to-location works with different strategies.');
 
-InspectorTest.addScript(`
+contextGroup.addScript(`
 async function asyncFact(n) {
   if (n == 0) return 1;
   let r = n * await asyncFact(n - 1);
   console.log(r);
   return r;
 }
 
 function fact(n) {
   if (n == 0) return 1;
   let r = n * fact(n - 1);
   console.log(r);
   return r;
 }
 
 function topLevel() {
   eval(` + '`' + `
   var a = 1;
   var b = 2;
   fact(3);
   console.log(a + b);
   ` + '`' + `);
 }
 
 //# sourceURL=test.js`, 7, 26);
 
-InspectorTest.setupScriptMap();
+session.setupScriptMap();
 InspectorTest.runAsyncTestSuite([
   async function testAwaitAny() {
     Protocol.Debugger.enable();
     Protocol.Debugger.setAsyncCallStackDepth({ maxDepth: 128 });
     Protocol.Debugger.pause();
     Protocol.Runtime.evaluate({expression: 'asyncFact(4)//# sourceURL=expr.js'});
     await pausedAndDumpStack();
     Protocol.Debugger.stepInto();
     let message = await pausedAndDumpStack();
     let location = message.params.callFrames[0].location;
@@ skipping 81 matching lines @@
     location.lineNumber = 4;
     Protocol.Debugger.continueToLocation({location, targetCallFrames: 'current'});
     await pausedAndDumpStack();
     await Protocol.Debugger.resume();
     Protocol.Debugger.disable();
   }
 ]);
 
 async function pausedAndDumpStack() {
   let message = await Protocol.Debugger.oncePaused();
-  InspectorTest.logCallFrames(message.params.callFrames);
-  InspectorTest.logAsyncStackTrace(message.params.asyncStackTrace);
+  session.logCallFrames(message.params.callFrames);
+  session.logAsyncStackTrace(message.params.asyncStackTrace);
   InspectorTest.log('');
   return message;
 }