Fix.

node_modules/es-abstract/helpers/assertRecord.js

@@ -0,0 +1,49 @@
+'use strict';
+
+var GetIntrinsic = require('../GetIntrinsic');
+
+var $TypeError = GetIntrinsic('%TypeError%');
+var $SyntaxError = GetIntrinsic('%SyntaxError%');
+
+var has = require('has');
+
+var predicates = {
+  // https://ecma-international.org/ecma-262/6.0/#sec-property-descriptor-specification-type
+  'Property Descriptor': function isPropertyDescriptor(ES, Desc) {
+    if (ES.Type(Desc) !== 'Object') {
+      return false;
+    }
+    var allowed = {
+      '[[Configurable]]': true,
+      '[[Enumerable]]': true,
+      '[[Get]]': true,
+      '[[Set]]': true,
+      '[[Value]]': true,
+      '[[Writable]]': true
+    };
+
+    for (var key in Desc) { // eslint-disable-line
+      if (has(Desc, key) && !allowed[key]) {
+        return false;
+      }
+    }
+
+    var isData = has(Desc, '[[Value]]');
+    var IsAccessor = has(Desc, '[[Get]]') || has(Desc, '[[Set]]');
+    if (isData && IsAccessor) {
+      throw new $TypeError('Property Descriptors may not be both accessor and data descriptors');
+    }
+    return true;
+  }
+};
+
+module.exports = function assertRecord(ES, recordType, argumentName, value) {
+  var predicate = predicates[recordType];
+  if (typeof predicate !== 'function') {
+    throw new $SyntaxError('unknown record type: ' + recordType);
+  }
+  if (!predicate(ES, value)) {
+    throw new $TypeError(argumentName + ' must be a ' + recordType);
+  }
+  console.log(predicate(ES, value), value);
+};