[FIR] KT-53988: Report ILLEGAL_SELECTOR for constants as selectors

Merge-request: KT-MR-7756
Merged-by: Nikolay Lunyak <Nikolay.Lunyak@jetbrains.com>

^KT-53988 Fixed

analysis/low-level-api-fir/tests/org/jetbrains/kotlin/analysis/low/level/api/fir/diagnostic/compiler/based/DiagnosisCompilerTestFE10TestdataTestGenerated.java

@@ -447,6 +447,12 @@ public class DiagnosisCompilerTestFE10TestdataTestGenerated extends AbstractDiag
             runTest("compiler/testData/diagnostics/tests/kt53.kt");
         }
 
+        @Test
+        @TestMetadata("kt53988.kt")
+        public void testKt53988() throws Exception {
+            runTest("compiler/testData/diagnostics/tests/kt53988.kt");
+        }
+
         @Test
         @TestMetadata("LValueAssignment.kt")
         public void testLValueAssignment() throws Exception {