[IR] Eliminate redundant boxing/unboxing of MFVC after inlining

Signed-off-by: Evgeniy.Zhelenskiy <Evgeniy.Zhelenskiy@jetbrains.com>

#KT-1179

compiler/tests-common-new/tests-gen/org/jetbrains/kotlin/test/runners/codegen/IrBlackBoxCodegenTestGenerated.java

@@ -50501,6 +50501,12 @@ public class IrBlackBoxCodegenTestGenerated extends AbstractIrBlackBoxCodegenTes
             runTest("compiler/testData/codegen/box/valueClasses/functionReferences.kt");
         }
 
+        @Test
+        @TestMetadata("inlineFunctions.kt")
+        public void testInlineFunctions() throws Exception {
+            runTest("compiler/testData/codegen/box/valueClasses/inlineFunctions.kt");
+        }
+
         @Test
         @TestMetadata("mfvcBothEqualsOverride.kt")
         public void testMfvcBothEqualsOverride() throws Exception {