Merge pull request swiftlang#32679 from apple/disable-osx-targets-swift-run-line

Disable a RUN line in osx-targets.swift

Author: hyp

test/IRGen/osx-targets.swift

@@ -1,6 +1,8 @@
 // RUN: %swift %s -emit-ir | %FileCheck %s
 // RUN: %swift -target x86_64-apple-macosx10.51 %s -emit-ir | %FileCheck -check-prefix=CHECK-SPECIFIC %s
-// RUN: %swift -target x86_64-apple-darwin55 %s -emit-ir | %FileCheck -check-prefix=CHECK-SPECIFIC %s
+
+// disable this test until macOS 11 support lands in Swift.
+// : %swift -target x86_64-apple-darwin55 %s -emit-ir | %FileCheck -check-prefix=CHECK-SPECIFIC %s
 
 // REQUIRES: OS=macosx