[DevTools] Migrate inspector-protocol/debugger tests to new harness

third_party/WebKit/LayoutTests/inspector-protocol/debugger/updateCallFrameScopes.js

+(async function(testRunner) {
+  let {page, session, dp} = await testRunner.startBlank('');
+
+  var newVariableValue = 55;
+
+  dp.Debugger.enable();
+  dp.Runtime.evaluate({expression: `
+    function TestFunction() {
+      var a = 2;
+      debugger;
+      debugger;
+    }
+    setTimeout(TestFunction, 0);
+  `});
+
+  var messageObject = await dp.Debugger.oncePaused();
+  testRunner.log(`Paused on 'debugger;'`);
+  var topFrame = messageObject.params.callFrames[0];
+  var topFrameId = topFrame.callFrameId;
+
+  dp.Debugger.evaluateOnCallFrame({callFrameId: topFrameId, expression: 'a = ' + newVariableValue });
+  testRunner.log('Variable value changed');
+  dp.Debugger.resume();
+
+  var response = await dp.Debugger.oncePaused();
+  testRunner.log('Stacktrace re-read again');
+  var localScope = response.params.callFrames[0].scopeChain[0];
+
+  response = await dp.Runtime.getProperties({objectId: localScope.object.objectId });
+  testRunner.log('Scope variables downloaded anew');
+  var propertyList = response.result.result;
+  var varNamedA = propertyList.find(x => x.name === 'a');
+  if (varNamedA) {
+    var actualValue = varNamedA.value.value;
+    testRunner.log('New variable is ' + actualValue + ', expected is ' + newVariableValue + ', old was: 2');
+    testRunner.log(actualValue == newVariableValue ? 'SUCCESS' : 'FAIL');
+  } else {
+    testRunner.log('Failed to find variable in scope');
+  }
+  testRunner.completeTest();
+})