[inspector] Refactor protocol-test.js

test/inspector/debugger/stepping-with-blackboxed-ranges.js

Index: test/inspector/debugger/stepping-with-blackboxed-ranges.js
diff --git a/test/inspector/debugger/stepping-with-blackboxed-ranges.js b/test/inspector/debugger/stepping-with-blackboxed-ranges.js
index 65b694b5667467ff1eab682e27209f10e5bae164..c1029a8785abe2fc37c8d7e77b243a243ec1c02c 100644
--- a/test/inspector/debugger/stepping-with-blackboxed-ranges.js
+++ b/test/inspector/debugger/stepping-with-blackboxed-ranges.js
@@ -2,7 +2,9 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-InspectorTest.addScript(
+let {session, contextGroup, Protocol} = InspectorTest.start('Tests that blackboxed ranges are respected while stepping');
+
+contextGroup.addScript(
 `function blackboxedBoo()
 {
     var a = 42;
@@ -11,7 +13,7 @@ InspectorTest.addScript(
 }
 //# sourceURL=blackboxed-script.js`);
 
-InspectorTest.addScript(
+contextGroup.addScript(
 `function notBlackboxedFoo()
 {
     var a = 42;
@@ -34,7 +36,7 @@ function notBlackboxedBoo()
 }
 //# sourceURL=mixed-source.js`);
 
-InspectorTest.addScript(
+contextGroup.addScript(
 `function testFunction()
 {
     notBlackboxedBoo(); // for setup ranges and stepOut