Work around callsites bug

Author: Zache

packages/jest-reporters/src/__tests__/coverage_reporter.test.js

@@ -17,6 +17,7 @@ jest
 let libCoverage;
 let libSourceMaps;
 let CoverageReporter;
+let consoleError;
 
 import path from 'path';
 import mock from 'mock-fs';
@@ -40,11 +41,15 @@ beforeEach(() => {
     'relative_path_file.js': '',
   };
 
+  consoleError = console.error;
+  console.error = jest.fn();
+
   mock(fileTree);
 });
 
 afterEach(() => {
   mock.restore();
+  console.error = consoleError;
 });
 
 describe('onRunComplete', () => {