[validation-test] Move a 'compiler_crashers' test to 'compiler_crashers_fixed'.

This may have non-deterministic behavior, but it's not crashing now.

Author: akyrtzi

validation-test/compiler_crashers/28299-swift-lookupvisibledecls.swift renamed to validation-test/compiler_crashers_fixed/28299-swift-lookupvisibledecls.swift

@@ -5,7 +5,7 @@
 // See http://swift.org/LICENSE.txt for license information
 // See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
 
-// RUN: not --crash %target-swift-frontend %s -parse
+// RUN: not %target-swift-frontend %s -parse
 // REQUIRES: asserts
 protocol A
 extension A