Added crash 272 llvm irbuilder createcall
Simplified crash 272
Merge pull request #25 from fluidsonic/crashes-4

Added crash 272 llvm irbuilder createcall
Updated hall of fame :-)
Updated to reflect status at Xcode 6.1 GM seed 1.
Xcode 6.1 GM seed 2 fixed 13 % of all open Swift crashing bugs (3 of 23 crashes).
(Not counting fuzzer generated crashes. Xcode 6.1 GM seed 2 fixed 41 % of those (29 of 70 crashes).)

Stats for previous releases:
* Xcode 6.1 beta 3/Xcode 6.1 GM seed 1 fixed 66 % of all open Swift crashing bugs (27 of 41 crashes)
* Xcode 6.1 beta 2 fixed 7 % of all open Swift crashing bugs (3 of 41 crashes).
* Xcode 6.1 beta 1 fixed 14 % of all open Swift crashing bugs (6 of 43 crashes).
* Xcode 6 beta 7 fixed 16 % of all open Swift crashing bugs (7 of 44 crashes).
Merge branch 'crashes-4'
Merge remote-tracking branch 'upstream/master'