[FIR] Quick fix FirModifierChecker

idea/idea-frontend-fir/src/org/jetbrains/kotlin/idea/frontend/api/fir/diagnostics/KtFirDataClassConverters.kt

@@ -2430,20 +2430,6 @@ internal val KT_DIAGNOSTIC_CONVERTER = KtDiagnosticConverterBuilder.buildConvert
             token,
         )
     }
-    add(FirErrors.INAPPLICABLE_BACKING_FIELD_VISIBILITY) { firDiagnostic ->
-        InapplicableBackingFieldVisibilityImpl(
-            firDiagnostic.a,
-            firDiagnostic as FirPsiDiagnostic,
-            token,
-        )
-    }
-    add(FirErrors.INAPPLICABLE_BACKING_FIELD_MODIFIER) { firDiagnostic ->
-        InapplicableBackingFieldModifierImpl(
-            firDiagnostic.a,
-            firDiagnostic as FirPsiDiagnostic,
-            token,
-        )
-    }
     add(FirErrors.EXPLICIT_BACKING_FIELD_IN_INTERFACE) { firDiagnostic ->
         ExplicitBackingFieldInInterfaceImpl(
             firDiagnostic as FirPsiDiagnostic,

idea/idea-frontend-fir/src/org/jetbrains/kotlin/idea/frontend/api/fir/diagnostics/KtFirDiagnostics.kt

@@ -1719,16 +1719,6 @@ sealed class KtFirDiagnostic<PSI : PsiElement> : KtDiagnosticWithPsi<PSI> {
         override val diagnosticClass get() = PropertyMustHaveSetter::class
     }
 
-    abstract class InapplicableBackingFieldVisibility : KtFirDiagnostic<PsiElement>() {
-        override val diagnosticClass get() = InapplicableBackingFieldVisibility::class
-        abstract val modifier: KtModifierKeywordToken
-    }
-
-    abstract class InapplicableBackingFieldModifier : KtFirDiagnostic<PsiElement>() {
-        override val diagnosticClass get() = InapplicableBackingFieldModifier::class
-        abstract val modifier: KtModifierKeywordToken
-    }
-
     abstract class ExplicitBackingFieldInInterface : KtFirDiagnostic<KtBackingField>() {
         override val diagnosticClass get() = ExplicitBackingFieldInInterface::class
     }

idea/idea-frontend-fir/src/org/jetbrains/kotlin/idea/frontend/api/fir/diagnostics/KtFirDiagnosticsImpl.kt

@@ -2818,6 +2818,13 @@ internal class ExplicitBackingFieldInAbstractPropertyImpl(
     override val firDiagnostic: FirPsiDiagnostic by weakRef(firDiagnostic)
 }
 
+internal class AbstractPropertyInPrimaryConstructorParametersImpl(
+    firDiagnostic: FirPsiDiagnostic,
+    override val token: ValidityToken,
+) : KtFirDiagnostic.AbstractPropertyInPrimaryConstructorParameters(), KtAbstractFirDiagnostic<KtModifierListOwner> {
+    override val firDiagnostic: FirPsiDiagnostic by weakRef(firDiagnostic)
+}
+
 internal class ExpectedDeclarationWithBodyImpl(
     firDiagnostic: FirPsiDiagnostic,
     override val token: ValidityToken,