Fix issue with deduplcation of babel plugin when parallelized

Author: Robert Jackson

lib/utils.js

@@ -23,7 +23,7 @@ function isInlinePrecompileBabelPluginRegistered(plugins) {
       plugin._parallelBabel !== undefined
     ) {
       return (
-        plugin._parallelBabel.requireFile === path.resolve(__dirname, 'lib/require-from-worker') &&
+        plugin._parallelBabel.requireFile === require.resolve('./require-from-worker') &&
         typeof plugin._parallelBabel.params === 'object' &&
         typeof plugin._parallelBabel.params.modules === 'object' &&
         plugin._parallelBabel.params.modules['ember-cli-htmlbars'] === 'hbs'