Dont run the build tool plugin on windows

Author: plemarquand

assets/test/targets/Plugins/BuildToolPlugin/BuildToolPlugin.swift

@@ -6,8 +6,7 @@ struct SimpleBuildToolPlugin: BuildToolPlugin {
     func createBuildCommands(context: PluginContext, target: Target) async throws -> [Command] {
         guard let sourceFiles = target.sourceModule?.sourceFiles else { return [] }
 
-        // Build tool plugins are not being called on Windows with Swift < 6.0.
-        #if os(Windows) && !compiler(>=6.0)
+        #if os(Windows)
         return []
         #endif
 

assets/test/targets/Sources/BuildToolExecutableTarget/BuildToolExecutableTarget.swift

@@ -1,4 +1,4 @@
-#if !(os(Windows) && swift(<6.1))
+#if !os(Windows)
 import Foundation
 
 @main
@@ -36,4 +36,10 @@ enum CodeGeneratorError: Error {
     case invalidArguments
     case invalidData
 }
+#else
+@main
+struct DummyMain {
+    static func main() {
+    }
+}
 #endif

test/integration-tests/ui/ProjectPanelProvider.test.ts

@@ -131,10 +131,7 @@ suite("ProjectPanelProvider Test Suite", function () {
         });
 
         test("Shows files generated by build tool plugin", async function () {
-            if (
-                process.platform === "win32" &&
-                workspaceContext.globalToolchain.swiftVersion.isLessThan(new Version(6, 0, 0))
-            ) {
+            if (process.platform === "win32") {
                 this.skip();
             }