[inspector] fix timestamp formatting with non C locales

test/inspector/runtime/protocol-works-with-different-locale.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.
+
+Protocol.Runtime.enable();
+
+Protocol.Runtime.onConsoleAPICalled(dumpConsoleApiCalled);
+
+InspectorTest.runTestSuite([
+  function consoleLogWithDefaultLocale(next) {
+    Protocol.Runtime.evaluate({ expression: "console.log(239) "}).then(next);
+  },
+
+  function consoleTimeWithCommaAsSeparator(next) {
+    InspectorTest.log("set locale to fr_CA.UTF-8 (has comma as separator)");
+    setlocale("fr_CA.UTF-8");
+    Protocol.Runtime.evaluate({ expression: "console.time(\"a\"); console.timeEnd(\"a\")"}).then(next);
+  },
+
+  function consoleLogWithCommaAsSeparator(next) {
+    InspectorTest.log("set locale to fr_CA.UTF-8 (has comma as separator)");
+    setlocale("fr_CA.UTF-8");
+    Protocol.Runtime.evaluate({ expression: "console.log(239) "}).then(next);
+  },
+
+  function consoleTimeWithCommaAfterConsoleLog(next) {
+    InspectorTest.log("set locale to fr_CA.UTF-8 (has comma as separator)");
+    setlocale("fr_CA.UTF-8");
+    Protocol.Runtime.evaluate({ expression: "console.log(239) "})
+      .then(() => Protocol.Runtime.evaluate({ expression: "console.time(\"a\"); console.timeEnd(\"a\")"}))
+      .then(next);
+  }
+]);
+
+function dumpConsoleApiCalled(message) {
+  var firstArg = message.params.args[0];
+  if (firstArg.type === "string")
+    firstArg.value = firstArg.value.replace(/[0-9]+/g, "x");
+  InspectorTest.logMessage(message);
+}