MsCoverageReferencedPathMaps runs during design-time build

[KirillOsenkov]

See here:
#5178 (comment)

[KirillOsenkov]

This is also very expensive because it basically calls MSBuild on all projects (440 projects in our case)

[KirillOsenkov]

Should this target even run if Source Link is turned off?

[KirillOsenkov]

All projects collected by this target come with a ton of metadata, should we trim metadata from the project items that we don't need? It is very expensive to just shuffle this metadata around in MSBuild

[KirillOsenkov]

Why is this functionality on by default? Shouldn't this only be turned on when actually needed?

[nohwnd]

@fhnaseer please triage.