Dotnet muxer doesn't respect Windows symlinks

[agocke]

Scenario:

Install dotnet to a folder and create a symbolic link to dotnet.exe

Expected:

dotnet follows the symlink and resolves hostfxr etc as symlink-relative

Actual:

A fatal error occurred. The folder [C:\Users\andy\AppData\Local\dnvm\host\fxr] does not exist

[ghost]

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Issue Details

---

Scenario:

Install dotnet to a folder and create a symbolic link to dotnet.exe

Expected:

dotnet follows the symlink and resolves hostfxr etc as symlink-relative

Actual:

A fatal error occurred. The folder [C:\Users\andy\AppData\Local\dnvm\host\fxr] does not exist

Author:	agocke
Assignees:	-
Labels:	area-Host
Milestone:	-

[elinor-fung]

Related (would likely be the same solution):

• Support calling .NET Core-compiled custom executables by symlinks on Windows via the GetFinalPathNameByHandle WinAPI function #3144

pal::realpath is probably what would need to change:

runtime/src/native/corehost/hostmisc/pal.windows.cpp

Lines 727 to 728 in 1936536

	// Return if path is valid and file exists, return true and adjust path as appropriate.
	bool pal::realpath(string_t* path, bool skip_error_logging)