extensible type forms, update for design#640 (#367)
extensible type forms, update for design#640 (#367)
WebAssembly/binaryen,ddcc/binaryen,yurydelendik/binaryen,WebAssembly/binaryen,yurydelendik/binaryen,ddcc/binaryen,ddcc/binaryen,yurydelendik/binaryen,WebAssembly/binaryen,WebAssembly/binaryen,ddcc/binaryen,WebAssembly/binaryen,yurydelendik/binaryen,yurydelendik/binaryen,ddcc/binaryen