Added syntax to remove unneeded warnings in tests.
Merge branch 'master' of https://github.com/feupeu/SW401F14-Xtext
Added test for LINKING_DIAGNOSTIC errors.
Added string in "Conflicting identifier" error message.
Added more tests in LINKING_DIAGNOSTIC error handling.
Merge branch 'master' of https://github.com/feupeu/SW401F14-Xtext