check for possible null trait references

Change-Id: I53abe95f0edac772fe7a5b728718e0bbec7ac4c2
extracted reconstructIdentifier

Change-Id: Iabf528ba6967de8db2747ae3922805e0eb99d2d6
cleaned toMethodDelegate

Change-Id: Ic3646acae14059e4dd2baea737d9ad16013b4d01
delegates and annotations use IResolvedOperation

Change-Id: Ic3f864222a8868d326bfc80a1b89ab9a08950ae8
copyAllAnnotationsButDefinedFrom uses IResolvedOperation

Change-Id: Ibeb9d2b0efea7a471ad586c5231036e3e399432a
SWTBot: wait for nodes also on "Examples"

Change-Id: I4235126d843d59ca90c2efc39369c1eb15be9f1f
some renaming

Change-Id: Id9ece6c4a50480cedfbd096bb812ab790d8c9657
removed old commented code from the inferrer

Change-Id: I8d55af1f353ad231ddc6944607a4a668b7d484c6
removed some unused methods

Change-Id: I66add59fe6cdde9cbd54cdd02f51ed91417cd8f0
removed old commented code from the validator

Change-Id: I867d5a6d6b1448e710095a031edcaa30b5900750