fixup! [FE] Add tests for 'containingClassForStaticMemberAttr'

compiler/tests-common-new/tests/org/jetbrains/kotlin/test/frontend/fir/handlers/FirDiagnosticsHandler.kt

diff --git a/compiler/tests-common-new/tests/org/jetbrains/kotlin/test/frontend/fir/handlers/FirDiagnosticsHandler.kt b/compiler/tests-common-new/tests/org/jetbrains/kotlin/test/frontend/fir/handlers/FirDiagnosticsHandler.kt
index 9c76efd..172e1ee 100644
--- a/compiler/tests-common-new/tests/org/jetbrains/kotlin/test/frontend/fir/handlers/FirDiagnosticsHandler.kt
+++ b/compiler/tests-common-new/tests/org/jetbrains/kotlin/test/frontend/fir/handlers/FirDiagnosticsHandler.kt
@@ -174,8 +174,10 @@
             }
 
             override fun visitPropertyAccessExpression(propertyAccessExpression: FirPropertyAccessExpression) {
-                val reference = propertyAccessExpression.calleeReference as FirNamedReference
-                consumer.reportContainingClassDiagnostic(propertyAccessExpression, reference)
+                val reference = propertyAccessExpression.calleeReference
+                if (reference is FirNamedReference) {
+                    consumer.reportContainingClassDiagnostic(propertyAccessExpression, reference)
+                }
 
                 super.visitPropertyAccessExpression(propertyAccessExpression)
             }