use an unordered set for the main flow queue
use an unordered set for the main flow queue

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