Fwd: Mapping Java null-pointer exceptions to WasmGC

[tlively]

Discussion at https://github.com/WebAssembly/gc/issues/208 is probably interesting to folks following this proposal. Let's keep the discussion on that original issue rather than forking the discussion, though.

[aardappel]

related: https://github.com/WebAssembly/exception-handling/issues/89

[aheejin]

I'll respond there too, but here is the link to a summary of the rationale on why we decided not to catch traps: https://github.com/WebAssembly/exception-handling/issues/1#issuecomment-546568318