`--print-function-map` performs strange escaping on symbol name

[sbc100]

See emscripten-core/emscripten#24982.

e.g if my function has the name Namespace::foo(Namespace::SomeClass) in the name section the emitted symbol map file will contain:

2:Namespace::foo\28Namespace::SomeClass\29

[sbc100]

I think we should stop using this on the emscripten side so maybe we can just remove this flag?

[kripken]

I don't follow, how can we stop using this from the emscripten side? What would emscripten use instead?

Looking into the escaping, it seems the Names section has (), but Binaryen escapes it so it is a valid wat name. It then uses that in the IR. And --print-function-map prints out the names from the IR.

[sbc100]

Emscripten can just dump the names itself I think: emscripten-core/emscripten#25053. Should be faster too.

[kripken]

Oh right... good idea.