Backport fixes for running tests in Windows Containers

[mstorsjo]

Bugzilla Link	49987
Resolution	FIXED
Resolved on	May 03, 2021 17:08
Version	trunk
OS	All
Blocks	#48661
CC	@tstellar
Fixed by commit(s)	9de63b2 a885567 eae7f3e 072c90a

Extended Description

I'd appreciate if the following two commits can be backported to the 12.x branch:

commit 9de63b2
Author: Martin Storsjö [email protected]
Date: Thu Mar 18 14:08:10 2021 +0200

[lit] Pass the USERPROFILE variable through on Windows

commit a885567
Author: Martin Storsjö [email protected]
Date: Wed Mar 24 23:58:54 2021 +0200

[LLD] Fix probing a MSYS based 'tar' in a Windows Container

These two allow running tests with MSYS based tools within Windows Containers (which are used in the current CI setup, which afaik also runs tests for the release branches). This allows exposing bash within PATH in the image used for the containers (the same image is used for testing of the main branch too).

The commits apply cleanly and I can do the actual cherrypicking, if it's deemed ok.

[mstorsjo]

Backported as eae7f3e and 072c90a, thanks!

[tstellar]

Merged: 072c90a