Drop result of finally block after interpretation

This change is needed due to using FIR as frontend for tests. In this
case finally block doesn't has coercion to unit so it's result must
be dropped manually.

compiler/fir/fir2ir/tests-gen/org/jetbrains/kotlin/test/runners/ir/interpreter/IrInterpreterAfterFir2IrTestGenerated.java

@@ -331,6 +331,12 @@ public class IrInterpreterAfterFir2IrTestGenerated extends AbstractIrInterpreter
         runTest("compiler/testData/ir/interpreter/superClass.kt");
     }
 
+    @Test
+    @TestMetadata("unitResult.kt")
+    public void testUnitResult() throws Exception {
+        runTest("compiler/testData/ir/interpreter/unitResult.kt");
+    }
+
     @Test
     @TestMetadata("vararg.kt")
     public void testVararg() throws Exception {