Added test case reproducing bug #254: https://github.com/icsharpcode/NRefactory/issues/254
FunctionNeverReturnsTests: Added a few extra tests (this time, to check the behavior of Linq queries)
Fixed a bunch of bugs in FunctionNeverReturnsIssue/ReachabilityAnalysis. If/else statements and linq queries were not correctly handled.
Includes fix for bug #254.
FunctionNeverReturnsIssue: Added support for switch statements (and added proper tests)
Merge pull request #255 from mono-soc-2013/luiscubal-bug-254

Fixed FunctionNeverReturnsIssue