[inspector] Refactor protocol-test.js

test/inspector/debugger/caught-exception-from-framework-inside-async.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('Async caught exception prediction and blackboxing.');
+let {session, contextGroup, Protocol} = InspectorTest.start('Async caught exception prediction and blackboxing.');
 
-InspectorTest.addScript(`
+contextGroup.addScript(`
 function constructorThrow() {
   return new Promise((resolve, reject) =>
     Promise.resolve().then(() =>
       reject("f")  // Exception f
     )
   );
 }
 
 function dotCatch(producer) {
   Promise.resolve(producer()).catch(() => {});
 }
 //# sourceURL=framework.js`);
 
-InspectorTest.setupScriptMap();
+session.setupScriptMap();
 (async function test() {
   Protocol.Debugger.enable();
   Protocol.Debugger.setBlackboxPatterns({patterns: ['framework\.js']});
   Protocol.Debugger.setPauseOnExceptions({state: 'all'});
   Protocol.Runtime.evaluate({expression: 'dotCatch(constructorThrow);'});
   // Should break at this debugger statement, not at reject.
   Protocol.Runtime.evaluate({expression: 'setTimeout(\'debugger;\', 0);'});
   await waitPauseAndDumpLocation();
   InspectorTest.completeTest();
 })();
 
 async function waitPauseAndDumpLocation() {
   var message = await Protocol.Debugger.oncePaused();
   InspectorTest.log('paused at:');
-  InspectorTest.logSourceLocation(message.params.callFrames[0].location);
+  session.logSourceLocation(message.params.callFrames[0].location);
   return message;
 }