Try a different workaround

Author: grynspan

Sources/Testing/ABI/EntryPoints/ABIEntryPoint.swift

@@ -55,6 +55,13 @@ extension ABIv0 {
   }
 }
 
+#if !SWT_FIXED_SWIFTPM_8111 && os(Windows)
+@_spi(__Workaround8111)
+@_cdecl("swt_abiv0_getEntryPoint")
+public func abiv0_getEntryPoint() -> UnsafeRawPointer {
+  unsafeBitCast(ABIv0.entryPoint, to: UnsafeRawPointer.self)
+}
+#else
 /// An exported C function that is the equivalent of
 /// ``ABIv0/entryPoint-swift.type.property``.
 ///
@@ -64,6 +71,7 @@ extension ABIv0 {
 @usableFromInline func abiv0_getEntryPoint() -> UnsafeRawPointer {
   unsafeBitCast(ABIv0.entryPoint, to: UnsafeRawPointer.self)
 }
+#endif
 
 #if !SWT_NO_SNAPSHOT_TYPES
 // MARK: - Xcode 16 Beta 1 compatibility

Sources/Testing/Issues/Issue+Recording.swift

@@ -199,6 +199,13 @@ extension Issue {
 #endif
 @usableFromInline nonisolated(unsafe) var failureBreakpointValue = 0
 
+#if !SWT_FIXED_SWIFTPM_8111 && os(Windows)
+@inline(never)
+@_spi(__Workaround8111)
+func failureBreakpoint() {
+  failureBreakpointValue = 0
+}
+#else
 /// A function called by the testing library when a failure occurs.
 ///
 /// Whenever a test failure (specifically, a non-known ``Issue``) is recorded,
@@ -232,3 +239,4 @@ func failureBreakpoint() {
   // cannot be optimized away.
   failureBreakpointValue = 0
 }
+#endif

Tests/TestingTests/MiscellaneousTests.swift

@@ -9,6 +9,9 @@
 //
 
 @testable @_spi(Experimental) @_spi(ForToolsIntegrationOnly) import Testing
+#if !SWT_FIXED_SWIFTPM_8111 && os(Windows)
+@testable @_spi(__Workaround8111) import Testing
+#endif
 
 @Test(/* name unspecified */ .hidden)
 @Sendable func freeSyncFunction() {}