[test] Mark this recently-added crasher as requiring assertions.

jrose-apple · jrose-apple · commit dacdec9de433 · 2017-10-04T17:58:32.000-07:00
Added in Doug's f0e244c.
diff --git a/validation-test/compiler_crashers_2/0127-sr5546.swift b/validation-test/compiler_crashers_2/0127-sr5546.swift
@@ -1,4 +1,6 @@
 // RUN: not --crash %target-swift-frontend %s -typecheck
+// REQUIRES: asserts
+
 public struct Foo<A, B, C> {}
 
 public protocol P {
