Added test for inlining accessors of const properties (#4589)

(cherry picked from commit fa4cd091ae9160b97d79bd318cc92f76ada82fec)

kotlin-native/backend.native/tests/build.gradle

@@ -3229,6 +3229,11 @@ task inline_defaultArgs(type: KonanLocalTest) {
     source = "codegen/inline/defaultArgs.kt"
 }
 
+task inline_propertyAccessorInline(type: KonanLocalTest) {
+    goldValue = "123\n42\n"
+    source = "codegen/inline/propertyAccessorInline.kt"
+}
+
 task inline_twiceInlinedObject(type: KonanLocalTest) {
     goldValue = "Ok\n"
     source = "codegen/inline/twiceInlinedObject.kt"

kotlin-native/backend.native/tests/codegen/inline/propertyAccessorInline.kt

@@ -0,0 +1,22 @@
+/*
+ * 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.inline.propertyAccessorInline
+
+import kotlin.test.*
+
+object C {
+    const val x = 42
+}
+
+fun getC(): C {
+    println(123)
+    return C
+}
+
+@Test fun runTest() {
+    println(getC().x)
+}
+