make `emitDiagnostic` sync (not async)

[yoav-steinberg]

I don't see why emitDiagnostic should be async, as it's basically calling codespan-reporting's underlying sync function. In my specific case I wanted to call emitDiagnostic in a js sync function that's being called back from within a wasm sync call:

js ---> call something in wasm and pass a callback to it ---> calls the js callback from within wasm ---> my sync callback can't call emitDiagnostic because it's async.

[Chriscbr]

I think it it should be possible, if I recall correctly I was just running into some weird webpack errors when I used a regular import.

[Chriscbr]

@yoav-steinberg Fixed in v0.4.0 🎉

[yoav-steinberg]

perfect! thanks.