use an arena vector for switch targets
use an arena vector for switch targets

WebAssembly/binaryen,WebAssembly/binaryen,ddcc/binaryen,yurydelendik/binaryen,ddcc/binaryen,WebAssembly/binaryen,WebAssembly/binaryen,yurydelendik/binaryen,ddcc/binaryen,WebAssembly/binaryen,yurydelendik/binaryen,yurydelendik/binaryen,ddcc/binaryen,yurydelendik/binaryen,ddcc/binaryen