Produce windows .def files together with .dlls.

backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/CAdapterGenerator.kt

@@ -292,7 +292,7 @@ private class ExportedElement(val kind: ElementKind,
 internal class CAdapterGenerator(val context: Context,
                                  internal val codegen: CodeGenerator) : IrElementVisitorVoid {
     private val scopes = mutableListOf<ExportedElementScope>()
-    internal val prefix: String = context.config.outputName
+    internal val prefix: String = context.config.moduleId
     private lateinit var outputStreamWriter: PrintWriter
 
     override fun visitElement(element: IrElement) {

backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/TempFiles.kt

@@ -21,6 +21,7 @@ import org.jetbrains.kotlin.konan.file.*
 class TempFiles(val outputName: String) {
     val nativeBinaryFile    by lazy { File("${outputName}.kt.bc") }
     val cAdapterHeader      by lazy { File("${outputName}_api.h") }
+    val cAdapterDef         by lazy { File("${outputName}_symbols.def") }
     val cAdapterCpp         by lazy { createTempFile("api", ".cpp").deleteOnExit() }
     val cAdapterBitcode     by lazy { createTempFile("api", ".bc").deleteOnExit() }