[inspector] Refactor protocol-test.js

test/inspector/debugger/wasm-stepping.js

Index: test/inspector/debugger/wasm-stepping.js
diff --git a/test/inspector/debugger/wasm-stepping.js b/test/inspector/debugger/wasm-stepping.js
index 7de6451a9f25aaec31436bd05bddae4171ac767b..d3a2c640486ba9674f0d72a5059bea3d67078fb7 100644
--- a/test/inspector/debugger/wasm-stepping.js
+++ b/test/inspector/debugger/wasm-stepping.js
@@ -2,6 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+let {session, contextGroup, Protocol} = InspectorTest.start('Tests stepping through wasm scripts');
+
 utils.load('test/mjsunit/wasm/wasm-constants.js');
 utils.load('test/mjsunit/wasm/wasm-module-builder.js');