Function rask_wasm_shared::mem::llvm_atomic_wait_i32

pub unsafe extern "C" fn llvm_atomic_wait_i32(
    ptr: *mut i32, 
    exp: i32, 
    timeout: i64
) -> i32

see https://github.com/WebAssembly/threads/blob/master/proposals/threads/Overview.md#wait-and-notify-operators