`comptime` object literal with ES6 method generates invalid JS

[bbrk24]

e.g.

x := comptime ({ foo() {} })

Compiles to:

const x = {"foo":foo() {}};

[bbrk24]

I have an idea on how to fix it; the problem is more general than it seems at first (e.g. x := comptime ({ foo() {} }.foo)). I'll get up a PR later.