FIR: Derive FirMemberDeclaration from FirAnnotatedDeclaration

It's necessary to have the sane logic that FirMemberDeclaration is a subtype of FirDeclaration
The only kind of controversial change here is making FirAnonymousObject
also be FirMemberDeclaration, thus having its own declaration status

compiler/fir/providers/src/org/jetbrains/kotlin/fir/FirVisibilityChecker.kt

@@ -19,6 +19,7 @@ import org.jetbrains.kotlin.fir.resolve.calls.ReceiverValue
 import org.jetbrains.kotlin.fir.resolve.fullyExpandedType
 import org.jetbrains.kotlin.fir.resolve.lookupSuperTypes
 import org.jetbrains.kotlin.fir.resolve.providers.firProvider
+import org.jetbrains.kotlin.fir.resolve.providers.symbolProvider
 import org.jetbrains.kotlin.fir.resolve.toSymbol
 import org.jetbrains.kotlin.fir.resolve.typeWithStarProjections
 import org.jetbrains.kotlin.fir.symbols.ConeClassLikeLookupTag
@@ -32,10 +33,10 @@ import org.jetbrains.kotlin.name.FqName
 import org.jetbrains.kotlin.types.AbstractTypeChecker
 
 abstract class FirModuleVisibilityChecker : FirSessionComponent {
-    abstract fun <T> isInFriendModule(declaration: T): Boolean where T : FirMemberDeclaration, T : FirDeclaration
+    abstract fun isInFriendModule(declaration: FirMemberDeclaration): Boolean
 
     class Standard(val session: FirSession) : FirModuleVisibilityChecker() {
-        override fun <T> isInFriendModule(declaration: T): Boolean where T : FirMemberDeclaration, T : FirDeclaration {
+        override fun isInFriendModule(declaration: FirMemberDeclaration): Boolean {
             val useSiteModuleData = session.moduleData
             val declarationModuleData = declaration.moduleData
             return useSiteModuleData == declarationModuleData || declarationModuleData in useSiteModuleData.friendDependencies

compiler/fir/providers/src/org/jetbrains/kotlin/fir/scopes/impl/FirAbstractImportingScope.kt

@@ -32,7 +32,6 @@ enum class FirImportingScopeFilter {
         if (this == ALL) return true
         // TODO: also check DeprecationLevel.HIDDEN and required Kotlin version
         val fir = symbol.fir
-        if (fir !is FirMemberDeclaration) return false
         val isVisible = when (fir.status.visibility) {
             // When importing from the same module, status may be unknown because the status resolver depends on super types
             // to determine visibility for functions, so it may not have finished yet. Since we only care about classes,