Handle inline class operations in inline class secondary constructors

#KT-27225 Fixed

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

@@ -271,6 +271,8 @@ private class InlineClassTransformer(private val context: Context) : IrBuildingT
     }
 
     override fun visitConstructor(declaration: IrConstructor): IrStatement {
+        super.visitConstructor(declaration)
+
         val classIsInlined = declaration.constructedClass.isInlined()
 
         if (classIsInlined && !declaration.isPrimary) {
@@ -282,7 +284,7 @@ private class InlineClassTransformer(private val context: Context) : IrBuildingT
             (declaration.body as IrBlockBody).statements.clear()
         }
 
-        return super.visitConstructor(declaration)
+        return declaration
     }
 
     private fun IrBuilderWithScope.irIsNull(expression: IrExpression): IrExpression {

backend.native/tests/build.gradle

@@ -2580,6 +2580,10 @@ task classDeclarationInsideInline(type: RunKonanTest) {
     goldValue = "test1: 1.0\n1\ntest2\n"
 }
 
+task inlineClass0(type: RunKonanTest) {
+    source = "codegen/inlineClass/inlineClass0.kt"
+}
+
 task deserialized_inline0(type: RunKonanTest) {
     source = "serialization/deserialized_inline0.kt"
 }

backend.native/tests/codegen/inlineClass/inlineClass0.kt

@@ -0,0 +1,20 @@
+/*
+ * Copyright 2010-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
+ */
+
+package codegen.inlineClass.inlineClass0
+
+import kotlin.test.*
+
+// Based on KT-27225.
+
+inline class First(val value: Int)
+
+inline class Second(val value: First) {
+    constructor(c: Int) : this(First(c))
+}
+
+@Test fun runTest() {
+    assertEquals(Second(42).value.value, 42)
+}