Auto merge of #150628 - JonathanBrouwer:rollup-zy040xr, r=JonathanBrouwer

Rollup of 4 pull requests

Successful merges:

 - rust-lang/rust#149991 (Add checks for gpu-kernel calling conv)
 - rust-lang/rust#150047 (std: merge `sys::pal::common` and `sys_common` into `sys::helpers`)
 - rust-lang/rust#150441 (do not suggest method call removal if it changes receiver type)
 - rust-lang/rust#150616 (Update `browser-ui-test` version to `0.23.0`)

r? `@ghost`
`@rustbot` modify labels: rollup

Author: bors

tests/fail/shims/fs/isolated_file.stderr

@@ -15,12 +15,12 @@ LL |         let fd = cvt_r(|| unsafe { open64(path.as_ptr(), flags, opts.mode a
                at RUSTLIB/std/src/sys/fs/PLATFORM.rs:LL:CC
            3: std::sys::fs::PLATFORM::File::open::{closure#0}
                at RUSTLIB/std/src/sys/fs/PLATFORM.rs:LL:CC
-           4: std::sys::pal::PLATFORM::small_c_string::run_with_cstr_stack
-               at RUSTLIB/std/src/sys/pal/PLATFORM/small_c_string.rs:LL:CC
-           5: std::sys::pal::PLATFORM::small_c_string::run_with_cstr
-               at RUSTLIB/std/src/sys/pal/PLATFORM/small_c_string.rs:LL:CC
-           6: std::sys::pal::PLATFORM::small_c_string::run_path_with_cstr
-               at RUSTLIB/std/src/sys/pal/PLATFORM/small_c_string.rs:LL:CC
+           4: std::sys::helpers::small_c_string::run_with_cstr_stack
+               at RUSTLIB/std/src/sys/helpers/small_c_string.rs:LL:CC
+           5: std::sys::helpers::small_c_string::run_with_cstr
+               at RUSTLIB/std/src/sys/helpers/small_c_string.rs:LL:CC
+           6: std::sys::helpers::small_c_string::run_path_with_cstr
+               at RUSTLIB/std/src/sys/helpers/small_c_string.rs:LL:CC
            7: std::sys::fs::PLATFORM::File::open
                at RUSTLIB/std/src/sys/fs/PLATFORM.rs:LL:CC
            8: std::fs::OpenOptions::_open