Shorthand method definition fails to serialize and eval property

*properly

When using shorthand to define a function as a method in an object literal, serialization assigns a named function expression, which fails to evaluate.

$ var testSer = {  fn1: function(a) { console.log(a); return this; }, fn2: (d) => { console.log(d); return this; }, fn3(r) { console.log(r); return this; } };

Validate the functions first:

 test 1
{ fn1: [Function], fn2: [Function], fn3: [Function: fn3] }

$ testSer.fn2('test 2')

test 2
<context>

$ testSer.fn3('test 3')

test 3
{ fn1: [Function], fn2: [Function], fn3: [Function: fn3] }

Do the serialization:

$ ca
'{"fn1":function (a) { console.log(a); return this; },"fn2":(d) => { console.log(d); return this; },"fn3":fn3(r) { console.log(r); return this;  }}'

Note how it has created a "fn3" entry as a named function, but has neglected to add the function keyword.

Now try to eval:

$ var c = eval('('+ca+')');

SyntaxError: Unexpected token {
  at repl:1:20
  at REPLServer.defaultEval (repl.js:262:27)
  at bound (domain.js:287:14)
  at REPLServer.runBound [as eval] (domain.js:300:12)
  at REPLServer.<anonymous> (repl.js:431:12)
  at emitOne (events.js:82:20)
  at REPLServer.emit (events.js:169:7)
  at REPLServer.Interface._onLine (readline.js:211:10)
  at REPLServer.Interface._line (readline.js:550:8)
  at REPLServer.Interface._ttyWrite (readline.js:827:14)
  at ReadStream.onkeypress (readline.js:106:10)
  at emitTwo (events.js:87:13)
  at ReadStream.emit (events.js:172:7)
  at emitKeys (readline.js:1251:14)
  at next (native)
  at ReadStream.onData (readline.js:919:36)
  at emitOne (events.js:77:13)
  at ReadStream.emit (events.js:169:7)
  at readableAddChunk (_stream_readable.js:153:18)
  at ReadStream.Readable.push (_stream_readable.js:111:10)
  at TTY.onread (net.js:531:20)

All it needs to do is add the function keyword:

'{"fn1":function (a) { console.log(a); return this; },"fn2":(d) => { console.log(d); return this; },"fn3": function fn3(r) { console.log(r); return this;  }}'

Node version:

$ node -v
  v4.4.3

Reproduce the issue with the serialize-javascript call shown in the report, focusing on the fn3 shorthand method output. Compare its serialized form with fn1 and fn2, then evaluate the result to confirm the syntax error is gone. Done means shorthand methods serialize to valid evaluable JavaScript while preserving the method name.