Fixes an "AmbiguousMatchException" where the extra matches really aren't all that Ambiguous...

... (i.e. they don't exist and/or they're located in the itemOutputDirectory).

This can happen if the solution you're decompiling also contains a web project, and the .sln.jsilconfig specifies that the OutputDirectory should be to a location inside that web project, and that web project has those files added to it as "Content".

[ An example of a solution which causes this issue can be found at: http://brainslugs83.azurewebsites.net/LD27-Downloads/ClickClickBoom-Source-2013-08-30.zip ]