[K/N] Disable split_compilation_pipeline for MinGW

kotlin-native/backend.native/tests/build.gradle

@@ -5584,7 +5584,12 @@ standaloneTest("fake_override_0") {
 }
 
 standaloneTest("split_compilation_pipeline") {
-    enabled = !twoStageEnabled
+    // Test infrastructure does not support passing flags only to the second stage,
+    // and we can't pass -Xcompile-from-bitcode when producing library. Thus, this test
+    // does not support 2-stage compilation for now.
+    // Also, it is failing for some reason on Windows CI, but since MinGW targets are not inteneded
+    // to use this mode, we can disable it for these targets.
+    enabled = !twoStageEnabled && project.target.name != "mingw_x64" && project.target.name != "mingw_x86"
     def dir = buildDir.absolutePath
     source = "link/private_fake_overrides/override_main.kt"
     doBeforeBuild {