message: added some logging to the ProgramBuilder spec to help figure out the TravisCI issue.
diff: @@ -77,18 +77,22 @@ describe('ProgramBuilder', () => {
  expect(builder.program.files[mainPath]).to.be.undefined;
  expect(builder.program.files[libPath]).to.be.undefined;
  + let mainUri = 'file:///' + mainPath;
  + console.log('mainUrl: ', mainUri);
  await builder.handleFileChanges([{
  type: <FileChangeType>FileChangeType.Created,
  - uri: 'file:///' + mainPath
  + uri: mainUri
  }]);
  expect(builder.program.files[mainPath]).to.exist;
  expect(builder.program.files[libPath]).to.be.undefined;
  + let libUri = 'file:///' + libPath;
  + console.log('libUri', libUri);
  await builder.handleFileChanges([{
  type: <FileChangeType>FileChangeType.Created,
  - uri: 'file:///' + libPath
  + uri: libUri
  }]);
  expect(builder.program.files[mainPath]).to.exist;
  