Allow for runtime specific option flags

[josh]

An options hash is already part of the Context argument list, but isn't totally plumbed all the way through.

It'd be great if we passed the options all the way down. This would allow for implementation specific flags such as timeouts.

ExecJS.eval("superSlow()", timeout: 3)

CC: @rafaelfranca @guilleiguaran

[rails-bot]

r? @schneems

(@rails-bot has picked a reviewer for you, use r? to override)

[rafaelfranca]

This looks good to me. But, is it a breaking change since if the custom runtime didn't accept options in the method it will raise an exception?

Do you want to merge or should I?

[schneems]

Can we check arity and give some kind of warning or deprecation?

[josh]

Can we check arity

Lets check arity, hopefully that doesn't cause any sort of overhead.

[guilleiguaran]

👍