Variable: relativeFile posix or not?

[bpasero]

While adopting our new path library I noticed that relativeFile seems to be returning file paths with slash. The path returned now will use backslash if on Windows which is probably the right behaviour, but I wanted to fyi. We currently have no helper to convert a Windows path into a Posix path because it looks like path.posix.normalize() will actually preserve backslash.

//cc @dbaeumer @alexr00

[pbricout]

I also have an issue on Windows as it seems that it now return backslashes instead of forward slashes, this seems to be recent regression from this issue:
#40256
According to this issue forward slashes should be used on all OSes.
Doing this on windows, when the shell is bash is failing:

        {
            "label": "echo",
            "type": "shell",
            "command": "echo ${relativeFile}",
            "problemMatcher": []
        },

Will show abc instead of a/b/c.

[weinand]

@isidorn could you please link this issue to the other issue.

[pbricout]

I have create this issue which is related I think:
#70926

[isidorn]

Dup of #70050 (comment)