[FIR IDE] Fix invalid reference resolve for null safety operator

idea/idea-frontend-fir/idea-fir-low-level-api/src/org/jetbrains/kotlin/idea/fir/low/level/api/file/structure/FirElementsRecorder.kt

@@ -70,7 +70,6 @@ internal open class FirElementsRecorder : FirVisitor<Unit, MutableMap<KtElement,
     override fun visitReference(reference: FirReference, data: MutableMap<KtElement, FirElement>) {}
     override fun visitControlFlowGraphReference(controlFlowGraphReference: FirControlFlowGraphReference, data: MutableMap<KtElement, FirElement>) {}
     override fun visitNamedReference(namedReference: FirNamedReference, data: MutableMap<KtElement, FirElement>) {}
-    override fun visitResolvedNamedReference(resolvedNamedReference: FirResolvedNamedReference, data: MutableMap<KtElement, FirElement>) {}
     override fun visitDelegateFieldReference(delegateFieldReference: FirDelegateFieldReference, data: MutableMap<KtElement, FirElement>) {}
     override fun visitBackingFieldReference(backingFieldReference: FirBackingFieldReference, data: MutableMap<KtElement, FirElement>) {}
     override fun visitSuperReference(superReference: FirSuperReference, data: MutableMap<KtElement, FirElement>) {}

idea/idea-frontend-fir/testData/referenceResolve/qualifiedAccess/nullSafeCallExpression.kt

@@ -0,0 +1,5 @@
+class A(val aa: A?)
+
+fun f(a: A) {
+    val x = a?.a<caret>a
+}

idea/idea-frontend-fir/testData/referenceResolve/qualifiedAccess/nullSafeCallExpression.txt

@@ -0,0 +1,2 @@
+Resolved to:
+0: (in A) val aa: A?

idea/idea-frontend-fir/tests/org/jetbrains/kotlin/idea/fir/frontend/api/ReferenceResolveTestGenerated.java

@@ -1087,6 +1087,12 @@ public class ReferenceResolveTestGenerated extends AbstractReferenceResolveTest
             runTest("idea/idea-frontend-fir/testData/referenceResolve/qualifiedAccess/callableReference3.kt");
         }
 
+        @Test
+        @TestMetadata("nullSafeCallExpression.kt")
+        public void testNullSafeCallExpression() throws Exception {
+            runTest("idea/idea-frontend-fir/testData/referenceResolve/qualifiedAccess/nullSafeCallExpression.kt");
+        }
+
         @Test
         @TestMetadata("ResolveFirstPackageOfFullyQualifiedReference.kt")
         public void testResolveFirstPackageOfFullyQualifiedReference() throws Exception {