Fixed issue with TL initializers + tests

Put all top level properties into the list of explicitly exported symbols

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

@@ -1077,6 +1077,12 @@ internal class IrModuleSerializer(
             proto.addDeclarationId(protoUniqId(uniqId))
         }
 
+        // Make sure that all top level properties are initialized on library's load.
+        file.declarations
+                .filterIsInstance<IrProperty>()
+                .filter { it.backingField?.initializer != null }
+                .forEach { proto.addExplicitlyExportedToCompiler(serializeIrSymbol(it.backingField!!.symbol)) }
+
         file.acceptVoid(object: IrElementVisitorVoid {
             override fun visitElement(element: IrElement) {
                 element.acceptChildrenVoid(this)

backend.native/tests/build.gradle

@@ -1084,6 +1084,18 @@ task initializers_correctOrder2(type: RunKonanTest) {
     source = "codegen/initializers/correctOrder2.kt"
 }
 
+task initializers_linkTest1(type: LinkKonanTest) {
+    goldValue = "1200\n"
+    source = "codegen/initializers/linkTest1_main.kt"
+    lib = "codegen/initializers/linkTest1_lib.kt"
+}
+
+task initializers_linkTest2(type: LinkKonanTest) {
+    goldValue = "2\n"
+    source = "codegen/initializers/linkTest2_main.kt"
+    lib = "codegen/initializers/linkTest2_lib.kt"
+}
+
 task arithmetic_basic(type: RunKonanTest) {
     source = "codegen/arithmetic/basic.kt"
 }

backend.native/tests/codegen/initializers/linkTest1_lib.kt

@@ -0,0 +1,3 @@
+val a = 10
+val b = a * 6
+val c = a * b * 2

backend.native/tests/codegen/initializers/linkTest1_main.kt

@@ -0,0 +1 @@
+fun main() = println(c)

backend.native/tests/codegen/initializers/linkTest2_lib.kt

@@ -0,0 +1,3 @@
+val a = mutableListOf<Int>()
+val b = 1.also { a += 2 }
+val c = a.single()

backend.native/tests/codegen/initializers/linkTest2_main.kt

@@ -0,0 +1 @@
+fun main() = println(c)