VariableDeclarator + ArrowFunctionExpression with named parameter throw 'Unexpected token =>'

[mikesherov]

From @termi in https://code.google.com/p/esprima/issues/detail?id=483

What steps will reproduce the problem?
Parse 'let test1 = ({a}) => ([a])' using esprima#harmony

What is the expected output?
AST

What do you see instead?
Error: Line 1: Unexpected token =>

Suggested Fix:
https://github.com/termi/es6-transpiler/blob/e99435f45aad8cac89c04208d1c33b4a7a57422f/lib/esprima_harmony.js#L3130#L3131

[fkling]

A fix for that is already in the harmony branch: 0e4014d

[mikesherov]

Thanks @fkling!

[ikarienator]

I recently found out that all the cases can be handled together directly in parseGroupExpression. We will have a much elegant way of dealing with ArrowFunctionExpressions soon.