#1 Duplicate shadows added when re-compiling code

[Kris De Volder]

When code containing matching shadows to a pointcut is recompiled, those shadows will be added once more. The xref view for the prointcut will then display them multiple times.

This doesn't happen on a full rebuild (because in that case aspects are also recompiled). This bug only happens when only the files containing shadows, but ont the aspects are rebuilt.