Test for PartialLinkageMode resolving fix

#KT-60839 Fixed

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

@@ -5,7 +5,9 @@
 
 package org.jetbrains.kotlin.gradle.native
 
+import org.gradle.api.logging.LogLevel
 import org.gradle.util.GradleVersion
+import org.jetbrains.kotlin.gradle.dsl.NativeCacheKind
 import org.jetbrains.kotlin.gradle.testbase.*
 import org.junit.jupiter.api.DisplayName
 import kotlin.io.path.appendText
@@ -67,4 +69,34 @@ internal class KotlinNativeLinkIT : KGPBaseTest() {
             }
         }
     }
-}
+
+    @DisplayName("KT-60839: should provide correct default value for -Xpartial-linkage")
+    @GradleTest
+    fun defaultValueForPartialLinkage(gradleVersion: GradleVersion) {
+        nativeProject(
+            "kt-60839-native-link-cache-builder",
+            gradleVersion = gradleVersion,
+            buildOptions = defaultBuildOptions.copy(
+                logLevel = LogLevel.DEBUG,
+                // KT-60839 only reproduces when the build cache is enabled,
+                // but we must ignore it when running this test in order to
+                // ensure we actually try to pass -Xpartial-linkage to konanc.
+                buildCacheEnabled = true,
+                freeArgs = defaultBuildOptions.freeArgs + "--rerun-tasks",
+                nativeOptions = defaultBuildOptions.nativeOptions.copy(
+                    cacheKind = NativeCacheKind.STATIC,
+                    // Required as this only reproduces from CacheBuilder.
+                    cacheOrchestration = "gradle"
+                )
+            ),
+        ) {
+
+            // Must be an unoptimized debug build.
+            build("linkDebugTestHost") {
+                extractNativeTasksCommandLineArgumentsFromOutput(":linkDebugTestHost") {
+                    assertCommandLineArgumentsContain("-Xpartial-linkage=ENABLE")
+                }
+            }
+        }
+    }
+}

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

@@ -79,6 +79,7 @@ data class BuildOptions(
         val restrictedDistribution: Boolean? = null,
         val useXcodeMessageStyle: Boolean? = null,
         val version: String? = null,
+        val cacheOrchestration: String? = null,
     )
 
     fun toArguments(
@@ -240,6 +241,9 @@ data class BuildOptions(
         nativeOptions.version?.let {
             arguments.add("-Pkotlin.native.version=${it}")
         }
+        nativeOptions.cacheOrchestration?.let {
+            arguments.add("-Pkotlin.native.cacheOrchestration=${it}")
+        }
 
     }
 }

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/kt-60839-native-link-cache-builder/build.gradle

@@ -0,0 +1,29 @@
+plugins {
+    id 'org.jetbrains.kotlin.multiplatform'
+}
+
+repositories {
+    mavenLocal()
+    mavenCentral()
+}
+
+kotlin {
+    <SingleNativeTarget>("host")
+
+    targets.named("host").configure {
+        binaries.test("integrationTests")
+    }
+
+    targets.named("host").configure {
+        binaries.executable()
+    }
+
+    sourceSets {
+        hostTest {
+            dependencies {
+                // This is required as the bug only happens when restoring options to link a native dependency from cache
+                implementation("org.jetbrains.kotlinx:kotlinx-datetime:0.3.3")
+            }
+        }
+    }
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/kt-60839-native-link-cache-builder/src/hostMain/kotlin/main.kt

@@ -0,0 +1,8 @@
+/*
+ * Copyright 2010-2022 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+fun main() {
+    println("Hello, Kotlin/Native!")
+}

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/kt-60839-native-link-cache-builder/src/hostTest/kotlin/Test.kt

@@ -0,0 +1,11 @@
+/*
+ * Copyright 2010-2023 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+import kotlin.test.Test
+
+class Test {
+    @Test
+    fun noopTest() {}
+}