[inspector] Make InspectorTest.sendCommand* private

test/inspector/debugger/scope-skip-variables-with-empty-name.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.
 
-InspectorTest.evaluateInPage(
+InspectorTest.addScript(
 `function testFunction()
 {
     for (var a of [1]) {
         ++a;
         debugger;
     }
 }`);
 
-InspectorTest.sendCommandOrDie("Debugger.enable", {});
-InspectorTest.eventHandler["Debugger.paused"] = dumpScopeOnPause;
-InspectorTest.sendCommandOrDie("Runtime.evaluate", { "expression": "testFunction()" });
+Protocol.Debugger.enable();
+Protocol.Debugger.oncePaused().then(dumpScopeOnPause);
+Protocol.Runtime.evaluate({ "expression": "testFunction()" });
 
 var waitScopeObjects = 0;
 function dumpScopeOnPause(message)
 {
   var scopeChain = message.params.callFrames[0].scopeChain;
   var localScopeObjectIds = [];
   for (var scope of scopeChain) {
     if (scope.type === "local")
       localScopeObjectIds.push(scope.object.objectId);
   }
   waitScopeObjects = localScopeObjectIds.length;
   if (!waitScopeObjects) {
     InspectorTest.completeTest();
   } else {
     for (var objectId of localScopeObjectIds)
-      InspectorTest.sendCommandOrDie("Runtime.getProperties", { "objectId" : objectId }, dumpProperties);
+      Protocol.Runtime.getProperties({ "objectId" : objectId }).then(dumpProperties);
   }
 }
 
 function dumpProperties(message)
 {
-  InspectorTest.logObject(message);
+  InspectorTest.logMessage(message);
   --waitScopeObjects;
   if (!waitScopeObjects)
-    InspectorTest.sendCommandOrDie("Debugger.resume", {}, () => InspectorTest.completeTest());
+    Protocol.Debugger.resume().then(InspectorTest.completeTest);
 }