Add support for adding PHP extensions

node_modules/lodash/_cloneSymbol.js

@@ -1,18 +0,0 @@
-var Symbol = require('./_Symbol');
-
-/** Used to convert symbols to primitives and strings. */
-var symbolProto = Symbol ? Symbol.prototype : undefined,
-    symbolValueOf = symbolProto ? symbolProto.valueOf : undefined;
-
-/**
- * Creates a clone of the `symbol` object.
- *
- * @private
- * @param {Object} symbol The symbol object to clone.
- * @returns {Object} Returns the cloned symbol object.
- */
-function cloneSymbol(symbol) {
-  return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {};
-}
-
-module.exports = cloneSymbol;