Guest module discovery skipped the input executable and the
--executable check rejected an executable converted twice through
std::filesystem::equivalent, which MinGW reports as false for hard links
whose names give different permissions, such as .bin and .exe. Move the
GetFileInformationByHandle comparison to Io::SameFile and use it for
these checks and for SameOutputFile.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
The MinGW CRT delivers argv to main as ANSI code page bytes, and every narrow string became a filesystem path through the same code page, so a game in a directory with characters outside the code page failed to open (#2692). Read the command line as Unicode (wmain via -municode), keep paths as UTF-8 strings, convert at the filesystem boundaries through Io::NativePath and Io::Utf8Path, and run the --autorun output through CreateProcessW.
(cherry picked from commit 30a5181f8a)
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