swift

521a70f4 - [ast] Always emit compiler(>= 5.3) when emitting guards for suppressable features to guard against parser errors.

[ast] Always emit compiler(>= 5.3) when emitting guards for suppressable features to guard against parser errors. The code here was assuming that if we already emitted a compiler guard for non-Suppressable features, we could avoid doing it for suppressable features. The problem with this is that compiler() does more than just check for compiler versions... it also tells the compiler that parser errors in the if block should be ignored when if evaluates to false. rdar://129045783