Timothy Gu 643d3f37a4 Implement ES2016 check for simple parameter list in strict mode (#106)
* Slightly simplify logic

* Implement ES2016 check for simple parameter list in strict mode

See e.g. ECMA-262 7.0 14.1.2:

> It is a Syntax Error if ContainsUseStrict of FunctionBody is true and
> IsSimpleParameterList of FormalParameters is false.

Similar clauses cover arrow functions, generator functions, methods, and
generator methods, as well as async functions and async arrow functions.
2016-09-15 19:58:01 +02:00

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