[PATCH v7 0/8] MR5342: Draft: shell32: fix some divergence with Windows in FindExecutable, ShellExecute, and PathResolve

[Yuxuan Shui (＠yshui)]

The motivator is `ShellExecute`, currently it searches for executables first relative to the current executable, then relative to the current working directory; whereas it should only search in the current working directory.

While trying to fix that, I found some related bugs in `FindExecutable` and `PathResolve`.

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  v7: shell32: Rely solely on SHELL_FindExecutable for ShellExecute.
      shell32: Fix FindExecutable search path.
      shell32: PathResolve should remove trailing dot.
      shell32: PathResolve should be able to find files that already have extensions.
      shell32: Make sure PathResolve can find files in the current directory.

https://gitlab.winehq.org/wine/wine/-/merge_requests/5342