Support OptionalExpectation in native

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/compilerRunner/KotlinNativeToolRunner.kt

@@ -146,7 +146,7 @@ internal class KonanInteropRunner(project: Project, additionalJvmArgs: List<Stri
         if (HostManager.host == KonanTarget.MINGW_X64) {
             //TODO: Oh-ho-ho fix it in more convinient way.
             environment.put("PATH", DependencyDirectories.defaultDependenciesRoot.absolutePath +
-                            "\\msys2-mingw-w64-x86_64-gcc-7.2.0-clang-llvm-5.0.0-windows-x86-64" +
+                            "\\msys2-mingw-w64-x86_64-gcc-7.3.0-clang-llvm-lld-6.0.1" +
                             "\\bin;${environment.get("PATH")}")
         }
     }

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/plugin/mpp/kotlinCompilations.kt

@@ -11,6 +11,8 @@ import org.gradle.api.NamedDomainObjectContainer
 import org.gradle.api.Project
 import org.gradle.api.attributes.AttributeContainer
 import org.gradle.api.file.FileCollection
+import org.gradle.api.file.FileTree
+import org.gradle.api.file.SourceDirectorySet
 import org.gradle.api.tasks.SourceSet
 import org.gradle.api.tasks.SourceSetOutput
 import org.gradle.util.ConfigureUtil
@@ -272,11 +274,14 @@ class KotlinNativeCompilation(
     private val project: Project
         get() = target.project
 
-    // A FileCollection containing source files from all source sets used by this compilation
+    // A collection containing all source sets used by this compilation
     // (taking into account dependencies between source sets). Used by both compilation
-    // and linking tasks.
+    // and linking tasks. Unlike kotlinSourceSets, includes dependency source sets.
     // TODO: Move into the compilation task when the linking task does klib linking instead of compilation.
-    internal var allSources: FileCollection = target.project.files()
+    internal val allSources: MutableSet<SourceDirectorySet> = mutableSetOf()
+
+    // TODO: Move into the compilation task when the linking task does klib linking instead of compilation.
+    internal val commonSources: MutableSet<SourceDirectorySet> = mutableSetOf()
 
     var isTestCompilation = false
 
@@ -399,8 +404,10 @@ class KotlinNativeCompilation(
         )
 
     override fun addSourcesToCompileTask(sourceSet: KotlinSourceSet, addAsCommonSources: Boolean) {
-        // TODO: support optional expectations
-        allSources += sourceSet.kotlin
+        allSources.add(sourceSet.kotlin)
+        if (addAsCommonSources) {
+            commonSources.add(sourceSet.kotlin)
+        }
     }
 }
 

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/tasks/KotlinNativeTasks.kt

@@ -96,13 +96,13 @@ open class KotlinNativeCompile : AbstractCompile() {
     lateinit var outputKind: CompilerOutputKind
 
     // Inputs and outputs
+    @InputFiles
+    @SkipWhenEmpty
+    override fun getSource(): FileTree = project.files(compilation.allSources).asFileTree
 
-    override fun getSource(): FileTree = sources.asFileTree
-
-    val sources: FileCollection
-        @InputFiles
-        @SkipWhenEmpty
-        get() = compilation.allSources
+    private val commonSources: FileCollection
+        // Already taken into account in getSources method.
+        get() = project.files(compilation.commonSources).asFileTree
 
     val libraries: FileCollection
         @InputFiles get() = compilation.compileDependencyFiles
@@ -190,7 +190,7 @@ open class KotlinNativeCompile : AbstractCompile() {
             // Language features.
             addArgIfNotNull("-language-version", languageVersion)
             addArgIfNotNull("-api-version", apiVersion)
-            addKey("-Xprogressive", progressiveMode)
+            addKey("-progressive", progressiveMode)
             enabledLanguageFeatures.forEach { featureName ->
                 add("-XXLanguage:+$featureName")
             }
@@ -221,11 +221,11 @@ open class KotlinNativeCompile : AbstractCompile() {
                 addArg("-friend-modules", friends.map { it.absolutePath }.joinToString(File.pathSeparator))
             }
 
-            addListArg("-linkerOpts", linkerOpts)
+            addListArg("-linker-options", linkerOpts)
 
             // Sources.
-            // TODO: Filter only kt files?
-            addAll(sources.files.map { it.absolutePath })
+            addAll(getSource().map { it.absolutePath })
+            add("-Xcommon-sources=${commonSources.map { it.absolutePath }.joinToString(separator = ",")}")
         }
 
         KonanCompilerRunner(project).run(args)