Bug 1375678 - Enable lint on testing/modules - mechanical changes; r=standard8

.eslintignore

testing/modules/AppData.jsm

testing/modules/AppInfo.jsm

testing/modules/Assert.jsm

testing/modules/CoverageUtils.jsm

testing/modules/MockRegistrar.jsm

testing/modules/MockRegistry.jsm

testing/modules/StructuredLog.jsm

testing/modules/tests/browser/.eslintrc.js

testing/modules/tests/xpcshell/.eslintrc.js

testing/modules/tests/xpcshell/test_assert.js

testing/modules/tests/xpcshell/test_mockRegistrar.js

testing/modules/tests/xpcshell/test_structuredlog.js