[FIR] Run checkers for FirErrorResolvedQualifier

`INVISIBLE_REFERENCE` may be reported due to CandidateApplicability via
a ConeDiagnostic, or in a checker. The former leads to
`FirErrorResolvedQualifier`, so the checker is not called.

This makes little sense, because CandidateApplicability may result in
`NO_COMPANION_OBJECT`, which would prevent other more meaningful
diagnostics from being reported (like `API_NOT_AVAILABLE`).

If we run checkers for `FirErrorResolvedQualifier` we may get duplicate
`INVISIBLE_REFERENCE`. The change in the checker prevents it.

compiler/testData/diagnostics/tests/j+k/privateNestedClassStaticMember.fir.kt

@@ -14,5 +14,5 @@ public class Foo {
 // FILE: 1.kt
 
 fun main() {
-    javaPackage.Foo.<!NO_COMPANION_OBJECT!>Bar<!>.<!INVISIBLE_REFERENCE!>doSmth<!>()
+    javaPackage.Foo.<!INVISIBLE_REFERENCE, NO_COMPANION_OBJECT!>Bar<!>.<!INVISIBLE_REFERENCE!>doSmth<!>()
 }