Work around compiler regression causing CI failure. (#664)

This PR attempts to work around the compiler regression reported in
rdar://135346598 that is currently causing our macOS CI jobs to fail.

### Checklist:

- [x] Code and documentation should follow the style of the [Style
Guide](https://github.com/apple/swift-testing/blob/main/Documentation/StyleGuide.md).
- [x] If public symbols are renamed or modified, DocC references should
be updated.

Author: grynspan

Tests/TestingTests/MiscellaneousTests.swift

@@ -166,6 +166,7 @@ struct TestsWithStaticMemberAccessBySelfKeyword {
   @Test(.hidden, arguments: Self.x)
   func f(i: Int) {}
 
+#if FIXED_135346598
   @Test(.hidden, arguments: Self.f(max: 100))
   func g(i: Int) {}
 
@@ -178,6 +179,7 @@ struct TestsWithStaticMemberAccessBySelfKeyword {
 
   @Test(.hidden, arguments: [Box(rawValue: Self.f(max:))])
   func j(i: Box<@Sendable (Int) -> Range<Int>>) {}
+#endif
 
   struct Nested {
     static let x = 0 ..< 100