github.com/tetratelabs/wazero@v1.7.3-0.20240513003603-48f702e154b5/internal/integration_test/spectest/v2/testdata/loop.4.wat

(type $sig (func (param i32) (result i32)))(func (i32.const 0) (loop (result i32) (type $sig) (param i32)))