Supporting GC on WebAssembly has been a _major_ pain for TinyGo because WebAssembly doesn't allow access to the stack. It's really slow and I'm still not confid

Supporting GC on WebAssembly has been a _major_ pain for TinyGo because WebAssembly doesn't allow access to the stack. It's really slow and I'm still not confident it's bug free. Having a GC integrated in WebAssembly itself should solve these issues. Unfortunately, the current GC design for WebAssembly doesn't support interior pointers which is going to be difficult to work around (but I don't think it's impossible). Interior pointers are normally required in Go.