Merge pull request #63826 from xedin/rdar-105752467

[Sema/Tests] NFC: Limit a couple of perf tests to macOS

Author: xedin

validation-test/Sema/type_checker_perf/fast/rdar32998180.swift

@@ -1,5 +1,6 @@
 // RUN: %target-typecheck-verify-swift -solver-expression-time-threshold=1
 // REQUIRES: tools-release,no_asan
+// REQUIRES: OS=macosx
 
 func rdar32998180(value: UInt16) -> UInt16 {
   let result = ((((value >> 1) ^ (value >> 1) ^ (value >> 1) ^ (value >> 1)) & 1) << 1)

validation-test/Sema/type_checker_perf/fast/rdar36838495.swift

@@ -1,5 +1,6 @@
 // RUN: %target-typecheck-verify-swift -solver-expression-time-threshold=1
 // REQUIRES: tools-release,no_asan
+// REQUIRES: OS=macosx
 
 struct T {
   enum B {