Executable name is resolved as relative terminal path

[haselwarter]

The code in #1398 resolves paths too eagerly as "relative". In particular, a bare executable name such as radian is taken to be a relative path and looked up in the current working directory instead of in $PATH (this should only happen for ./radian).

[renkun-ken]

I think we might need switch to using ${workspaceFolder} in these settings to represent the current workspace folder to resolve problems like this.

cc @Tal500

[Tal500]

I think we might need switch to using ${workspaceFolder} in these settings to represent the current workspace folder to resolve problems like this.

cc @Tal500

I'm up to whatever you're suggesting