[Gradle] Implement test KT-48118 c-interops available in commonMain

Integration Test project was taken from:
https://github.com/4qa/kotlin-multiplatform-issues/tree/cinterop-common

The issue seems to be twofold:
1) The old `compileKotlinMetadata` task is still found, even
when compatibilityMetadataVariant is disabled

2) The shared native compilation for commonMain can't be found, because
it is not listing its default source set:
(see: https://youtrack.jetbrains.com/issue/KT-45412)

Covers ^KT-48118

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

@@ -515,6 +515,29 @@ class CommonizerIT : BaseGradleIT() {
         }
     }
 
+    @Test
+    fun `test KT-48118 c-interops available in commonMain`() {
+        with(Project("commonize-kt-48118-c-interop-in-common-main")) {
+            reportSourceSetCommonizerDependencies(this) {
+                val upperMain = getCommonizerDependencies("upperMain")
+                upperMain.onlyCInterops().assertDependencyFilesMatches(".*cinterop-dummy")
+                upperMain.onlyNativeDistribution().assertNotEmpty()
+
+                val commonMain = getCommonizerDependencies("commonMain")
+                commonMain.onlyCInterops().assertDependencyFilesMatches(".*cinterop-dummy")
+                commonMain.onlyNativeDistribution().assertNotEmpty()
+            }
+
+            build(":compileCommonMainKotlinMetadata") {
+                assertSuccessful()
+            }
+
+            build(":compileUpperMainKotlinMetadata") {
+                assertSuccessful()
+            }
+        }
+    }
+
     @Test
     fun `test KT-47641 commonizing c-interops does not depend on any source compilation`() {
         with(Project("commonize-kt-47641-cinterops-compilation-dependency")) {

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

@@ -38,6 +38,15 @@ data class SourceSetCommonizerDependencies(
         )
     }
 
+    fun onlyNativeDistribution(): SourceSetCommonizerDependencies {
+        return SourceSetCommonizerDependencies(
+            sourceSetName,
+            dependencies.filter { dependency ->
+                dependency.file.allParents.any { parentFile -> parentFile.name == ".konan" }
+            }.toSet()
+        )
+    }
+
     fun assertTargetOnAllDependencies(target: CommonizerTarget) {
         dependencies.forEach { dependency ->
             if (dependency.target != target) {
@@ -52,6 +61,12 @@ data class SourceSetCommonizerDependencies(
         }
     }
 
+    fun assertNotEmpty() {
+        if (dependencies.isEmpty()) {
+            fail("$sourceSetName: Missing dependencies")
+        }
+    }
+
     fun assertDependencyFilesMatches(@Language("RegExp") @RegEx @RegExp vararg fileMatchers: String?) {
         assertDependencyFilesMatches(fileMatchers.filterNotNull().map(::Regex).toSet())
     }
@@ -137,12 +152,12 @@ private const val dollar = "\$"
 
 private val taskSourceCode = """
 tasks.register("reportCommonizerSourceSetDependencies") {
-    kotlin.sourceSets.withType(DefaultKotlinSourceSet::class).all {
+    kotlin.sourceSets.withType(org.jetbrains.kotlin.gradle.plugin.sources.DefaultKotlinSourceSet::class).all {
         inputs.files(configurations.getByName(intransitiveMetadataConfigurationName))
     }
 
     doLast {
-        kotlin.sourceSets.filterIsInstance<DefaultKotlinSourceSet>().forEach { sourceSet ->
+        kotlin.sourceSets.filterIsInstance<org.jetbrains.kotlin.gradle.plugin.sources.DefaultKotlinSourceSet>().forEach { sourceSet ->
             val configuration = configurations.getByName(sourceSet.intransitiveMetadataConfigurationName)
             val dependencies = configuration.files
 

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/commonize-kt-48118-c-interop-in-common-main/build.gradle.kts

@@ -0,0 +1,48 @@
+plugins {
+    kotlin("multiplatform")
+}
+
+repositories {
+    mavenLocal()
+}
+
+kotlin {
+    linuxArm64() {
+        compilations.getByName("main") {
+            cinterops {
+                create("dummy") {
+                    headers("libs/include/dummy/dummy.h")
+                    compilerOpts.add("-Ilibs/include")
+                }
+            }
+        }
+    }
+    linuxX64(){
+        compilations.getByName("main") {
+            cinterops {
+                create("dummy") {
+                    headers("libs/include/dummy/dummy.h")
+                    compilerOpts.add("-Ilibs/include")
+                }
+            }
+        }
+    }
+
+    sourceSets {
+        val commonMain by getting
+
+        val linuxArm64Main by getting
+        val linuxX64Main by getting
+
+        val upperMain by creating {
+            dependsOn(commonMain)
+        }
+
+        val lowerMain by creating {
+            dependsOn(upperMain)
+            linuxArm64Main.dependsOn(this)
+            linuxX64Main.dependsOn(this)
+        }
+    }
+}
+

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/commonize-kt-48118-c-interop-in-common-main/gradle.properties

@@ -0,0 +1,5 @@
+kotlin.mpp.enableGranularSourceSetsMetadata=true
+kotlin.native.enableDependencyPropagation=false
+kotlin.mpp.enableCInteropCommonization=true
+kotlin.mpp.enableCompatibilityMetadataVariant=false
+kotlin.mpp.enableIntransitiveMetadataConfiguration=true

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/commonize-kt-48118-c-interop-in-common-main/libs/include/dummy/dummy.h

@@ -0,0 +1 @@
+int max(int num1, int num2);

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/commonize-kt-48118-c-interop-in-common-main/settings.gradle.kts

@@ -0,0 +1,10 @@
+pluginManagement {
+    repositories {
+        mavenLocal()
+        gradlePluginPortal()
+    }
+    val kotlin_version: String by settings
+    plugins {
+        kotlin("multiplatform").version(kotlin_version)
+    }
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/commonize-kt-48118-c-interop-in-common-main/src/commonMain/kotlin/Common.kt

@@ -0,0 +1,3 @@
+fun c(){
+    dummy.max(2,3)
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/commonize-kt-48118-c-interop-in-common-main/src/upperMain/kotlin/SharedNative.kt

@@ -0,0 +1,3 @@
+fun sn(){
+    dummy.max(1,2)
+}