pub unsafe extern "C" fn LLVMRustComputeLTOCacheKey(
key_out: &RustString,
mod_id: *const c_char,
data: &ThinLTOData,
)
pub unsafe extern "C" fn LLVMRustComputeLTOCacheKey(
key_out: &RustString,
mod_id: *const c_char,
data: &ThinLTOData,
)