[test] Disable TSan tests over remote-run

Ideally lit.cfg would conditionalize this based on the remote OS,
but that's tricky. Meanwhile, let's not fail on old versions of
Apple OSs that don't support TSan.

rdar://problem/44802353

Author: jrose-apple

test/SILGen/tsan_instrumentation.swift

@@ -1,6 +1,10 @@
 // RUN: %target-swift-emit-silgen -sanitize=thread %s | %FileCheck %s
 // REQUIRES: tsan_runtime
 
+// FIXME: This should be covered by "tsan_runtime"; older versions of Apple OSs
+// don't support TSan.
+// UNSUPPORTED: remote_run
+
 func takesInout(_ p: inout Int) { }
 func takesInout(_ p: inout MyStruct) { }
 

test/Sanitizers/tsan-norace-block-release.swift

@@ -5,6 +5,10 @@
 // REQUIRES: objc_interop
 // REQUIRES: tsan_runtime
 
+// FIXME: This should be covered by "tsan_runtime"; older versions of Apple OSs
+// don't support TSan.
+// UNSUPPORTED: remote_run
+
 // Test that we do not report a race on block release operation.
 import Foundation
 

test/Sanitizers/tsan-norace-deinit-run-time.swift

@@ -5,6 +5,10 @@
 // REQUIRES: objc_interop
 // REQUIRES: tsan_runtime
 
+// FIXME: This should be covered by "tsan_runtime"; older versions of Apple OSs
+// don't support TSan.
+// UNSUPPORTED: remote_run
+
 // Test that we do not report a race on deinit; the synchronization is guaranteed by runtime.
 import Foundation
 

test/Sanitizers/tsan-static-exclusivity.swift

@@ -1,6 +1,10 @@
 // RUN: %target-swift-frontend -enforce-exclusivity=checked -sanitize=thread -emit-sil -primary-file %s -o /dev/null -verify
 // REQUIRES: tsan_runtime
 
+// FIXME: This should be covered by "tsan_runtime"; older versions of Apple OSs
+// don't support TSan.
+// UNSUPPORTED: remote_run
+
 
 struct OtherStruct {
   mutating

test/Sanitizers/tsan.swift

@@ -5,6 +5,10 @@
 // REQUIRES: tsan_runtime
 // UNSUPPORTED: OS=tvos
 
+// FIXME: This should be covered by "tsan_runtime"; older versions of Apple OSs
+// don't support TSan.
+// UNSUPPORTED: remote_run
+
 // https://bugs.swift.org/browse/SR-6622
 // XFAIL: linux