[Gradle] Don't resolve Apple-specific Cinterops on Linux & Windows

Resolving such dependencies was lenient, however it produced
a lot of annoying error messages in the IDE. Because "file not found".

KGP already warns user if they are declared Apple-specific targets
on non-macos machine.

^KT-66514 Verification Pending

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/kotlin/org/jetbrains/kotlin/gradle/MppIdeDependencyResolutionIT.kt

@@ -99,13 +99,21 @@ class MppIdeDependencyResolutionIT : KGPBaseTest() {
 
             resolveIdeDependencies("dep-with-cinterop") { dependencies ->
                 dependencies["commonMain"].cinteropDependencies()
-                    .assertMatches(binaryCoordinates(Regex("a:dep.*\\(linux_arm64, linux_x64\\)")))
+                    .assertMatches(binaryCoordinates(Regex("a:dep.*\\(ios_x64, linux_arm64, linux_x64\\)")))
                 dependencies["commonTest"].cinteropDependencies()
-                    .assertMatches(binaryCoordinates(Regex("a:dep.*\\(linux_arm64, linux_x64\\)")))
+                    .assertMatches(binaryCoordinates(Regex("a:dep.*\\(ios_x64, linux_arm64, linux_x64\\)")))
                 dependencies["linuxX64Main"].cinteropDependencies().assertMatches(binaryCoordinates(Regex("a:dep.*linux_x64")))
                 dependencies["linuxArm64Main"].cinteropDependencies().assertMatches(binaryCoordinates(Regex("a:dep.*linux_arm64")))
                 dependencies["linuxX64Test"].cinteropDependencies().assertMatches(binaryCoordinates(Regex("a:dep.*linux_x64")))
                 dependencies["linuxArm64Test"].cinteropDependencies().assertMatches(binaryCoordinates(Regex("a:dep.*linux_arm64")))
+
+                val iosX64MainDependencies = dependencies["iosX64Main"].cinteropDependencies()
+                if (HostManager.hostIsMac) {
+                    iosX64MainDependencies.assertMatches(binaryCoordinates(Regex("a:dep.*ios_x64")))
+                } else {
+                    if (iosX64MainDependencies.isNotEmpty())
+                        fail("Expected no dependencies (resolved & unresolved) for iosX64Cinterops on non-MacOS Host")
+                }
             }
 
             resolveIdeDependencies("client-for-binary-dep") { dependencies ->

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/cinteropImport/dep-with-cinterop/build.gradle.kts

@@ -6,6 +6,7 @@ plugins {
 kotlin {
     linuxX64().compilations.getByName("main").cinterops.create("dep")
     linuxArm64().compilations.getByName("main").cinterops.create("dep")
+    iosX64().compilations.getByName("main").cinterops.create("dep")
 }
 
 publishing {

libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/targets/native/internal/CInteropPropagatedDependencies.kt

@@ -11,6 +11,7 @@ import org.jetbrains.kotlin.gradle.dsl.multiplatformExtensionOrNull
 import org.jetbrains.kotlin.gradle.plugin.mpp.KotlinMetadataCompilation
 import org.jetbrains.kotlin.gradle.plugin.mpp.KotlinNativeCompilation
 import org.jetbrains.kotlin.gradle.plugin.mpp.KotlinSharedNativeCompilation
+import org.jetbrains.kotlin.gradle.plugin.mpp.enabledOnCurrentHost
 import org.jetbrains.kotlin.gradle.plugin.sources.DefaultKotlinSourceSet
 import org.jetbrains.kotlin.gradle.plugin.sources.internal
 import org.jetbrains.kotlin.gradle.tasks.CInteropProcess
@@ -76,6 +77,9 @@ internal fun Project.getPlatformCinteropDependenciesOrEmpty(
         /* Participating in multiple compilations? -> can't propagate -> should be commonized */
         val compilation = compilations.singleOrNull() as? KotlinNativeCompilation ?: return@files emptySet<File>()
 
+        /* Apple-specific cinterops can't be produced on non-MacOs machines, so just return an empty dependencies collection */
+        if (!compilation.target.konanTarget.enabledOnCurrentHost) return@files emptySet<File>()
+
         (compilation.associatedCompilations + compilation)
             .filterIsInstance<KotlinNativeCompilation>()
             .filter(compilationFilter)