Revert "Disable XCTest.swift until bot is upgraded."

gottesmm · gottesmm · commit 3fea66bc98ac · 2016-05-18T16:13:18.000-07:00
This reverts commit bddea63.
diff --git a/validation-test/stdlib/XCTest.swift b/validation-test/stdlib/XCTest.swift
@@ -4,7 +4,6 @@
 // REQUIRES: objc_interop
 
 // REQUIRES: OS=macosx
-// REQUIRES: disabled
 
 // watchOS 2.0 does not have an XCTest module.
 // XFAIL: OS=watchos
