test: address 2 new failures on node-chakracore

parallel/test-debugger-util-regression
  => debugger test, disable

sequential/test-process-warnings
  => different stack trace message

PR-URL: #46
Reviewed-By: Sandeep Agarwal <Agarwal.Sandeep@microsoft.com>
Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com>

test/parallel/test-debugger-util-regression.js

@@ -5,6 +5,12 @@ const assert = require('assert');
 
 const common = require('../common');
 
+if (common.isChakraEngine) {
+  console.log('1..0 # Skipped: This test is disabled for chakra engine ' +
+  'because debugger support is not implemented yet.');
+  return;
+}
+
 const fixture = path.join(
   common.fixturesDir,
   'debugger-util-regression-fixture.js'

test/sequential/test-process-warnings.js

@@ -1,6 +1,6 @@
 'use strict';
 
-require('../common');
+const common = require('../common');
 const assert = require('assert');
 const execFile = require('child_process').execFile;
 const warnmod = require.resolve('../fixtures/warnings.js');
@@ -29,5 +29,8 @@ execFile(node, traceWarn, function(er, stdout, stderr) {
   assert.equal(er, null);
   assert.equal(stdout, '');
   assert(/^\(.+\)\sWarning: a bad practice warning/.test(stderr));
-  assert(/at Object\.\<anonymous\>\s\(.+warnings.js:3:9\)/.test(stderr));
+  assert(common.engineSpecificMessage({
+    v8: /at Object\.\<anonymous\>\s\(.+warnings.js:3:9\)/,
+    chakracore:/at Anonymous function\s\(.+warnings.js:3:1\)/
+  }).test(stderr));
 });