[inspector] fix coverage test flakiness.

test/inspector/runtime/coverage.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.
 
 var source =
 `
 function fib(x) {
   if (x < 2) return 1;
   return fib(x-1) + fib(x-2);
 }
 (function iife() {
   return 1;
 })();
 fib(5);
 `;
 
 print("Test collecting code coverage data with Runtime.collectCoverage.");
 
 function ClearAndGC() {
   return Protocol.Runtime.evaluate({ expression: "fib = null;" })
            .then(() => Protocol.HeapProfiler.enable())
            .then(() => Protocol.HeapProfiler.collectGarbage())
            .then(() => Protocol.HeapProfiler.disable());
 }
 
+function LogSorted(message) {
+  message.result.result.sort((a, b) => parseInt(a.scriptId) - parseInt(b.scriptId));
+  return InspectorTest.logMessage(message);
+}
+
 InspectorTest.runTestSuite([
   function testPreciseCoverage(next)
   {
     Protocol.Runtime.enable()
       .then(Protocol.Runtime.startPreciseCoverage)
       .then(() => Protocol.Runtime.compileScript({ expression: source, sourceURL: "1", persistScript: true }))
       .then((result) => Protocol.Runtime.runScript({ scriptId: result.result.scriptId }))
       .then(ClearAndGC)
       .then(InspectorTest.logMessage)
       .then(Protocol.Runtime.takePreciseCoverage)
-      .then(InspectorTest.logMessage)
+      .then(LogSorted)
       .then(Protocol.Runtime.takePreciseCoverage)
-      .then(InspectorTest.logMessage)
+      .then(LogSorted)
       .then(ClearAndGC)
       .then(Protocol.Runtime.stopPreciseCoverage)
       .then(Protocol.Runtime.disable)
       .then(next);
   },
   function testPreciseCoverageFail(next)
   {
     Protocol.Runtime.enable()
       .then(() => Protocol.Runtime.compileScript({ expression: source, sourceURL: "2", persistScript: true }))
       .then((result) => Protocol.Runtime.runScript({ scriptId: result.result.scriptId }))
       .then(InspectorTest.logMessage)
       .then(ClearAndGC)
       .then(Protocol.Runtime.takePreciseCoverage)
       .then(InspectorTest.logMessage)
       .then(ClearAndGC)
       .then(Protocol.Runtime.disable)
       .then(next);
   },
   function testBestEffortCoverage(next)
   {
     Protocol.Runtime.enable()
       .then(() => Protocol.Runtime.compileScript({ expression: source, sourceURL: "3", persistScript: true }))
       .then((result) => Protocol.Runtime.runScript({ scriptId: result.result.scriptId }))
       .then(InspectorTest.logMessage)
       .then(ClearAndGC)
       .then(Protocol.Runtime.getBestEffortCoverage)
-      .then(InspectorTest.logMessage)
+      .then(LogSorted)
       .then(Protocol.Runtime.getBestEffortCoverage)
-      .then(InspectorTest.logMessage)
+      .then(LogSorted)
       .then(ClearAndGC)
       .then(Protocol.Runtime.disable)
       .then(next);
   },
   function testBestEffortCoveragePrecise(next)
   {
     Protocol.Runtime.enable()
       .then(Protocol.Runtime.startPreciseCoverage)
       .then(() => Protocol.Runtime.compileScript({ expression: source, sourceURL: "4", persistScript: true }))
       .then((result) => Protocol.Runtime.runScript({ scriptId: result.result.scriptId }))
       .then(InspectorTest.logMessage)
       .then(ClearAndGC)
       .then(Protocol.Runtime.getBestEffortCoverage)
-      .then(InspectorTest.logMessage)
+      .then(LogSorted)
       .then(Protocol.Runtime.getBestEffortCoverage)
-      .then(InspectorTest.logMessage)
+      .then(LogSorted)
       .then(ClearAndGC)
       .then(Protocol.Runtime.stopPreciseCoverage)
       .then(Protocol.Runtime.disable)
       .then(next);
   },
 ]);