[RFC] Bumping the minimum supported version of Node from v12 to v18

[Sam Clegg]

Hi all,

I'm considering bumping the minimum supported version of node (that emscripten can generate code for) from v12 to v18: https://github.com/emscripten-core/emscripten/pull/26604

The compiler itself already requires v18 so this would bring the two different versions inline with each other.  I would also, of course, simplify the compiler internals in some places.

Is anyone actually running emscripten-generated code on very old versions of node like this?

cheers,

sam