get function name change

node_modules/es-abstract/helpers/getSymbolDescription.js

@@ -0,0 +1,30 @@
+'use strict';
+
+var GetIntrinsic = require('../GetIntrinsic');
+
+var callBound = require('./callBound');
+
+var $SyntaxError = GetIntrinsic('%SyntaxError%');
+var symToStr = callBound('Symbol.prototype.toString', true);
+
+var getInferredName = require('./getInferredName');
+
+module.exports = function getSymbolDescription(symbol) {
+	if (!symToStr) {
+		throw new $SyntaxError('Symbols are not supported in this environment');
+	}
+	var str = symToStr(symbol); // will throw if not a symbol
+
+	if (getInferredName) {
+		var name = getInferredName(symbol);
+		if (name === '') { return; }
+		// eslint-disable-next-line consistent-return
+		return name.slice(1, -1); // name.slice('['.length, -']'.length);
+	}
+
+	var desc = str.slice(7, -1); // str.slice('Symbol('.length, -')'.length);
+	if (desc) {
+		// eslint-disable-next-line consistent-return
+		return desc;
+	}
+};