[FIR] Use abstract classes for FIR scopes

compiler/fir/java/src/org/jetbrains/kotlin/fir/java/scopes/JavaClassEnhancementScope.kt

@@ -40,7 +40,7 @@ import org.jetbrains.kotlin.utils.Jsr305State
 class JavaClassEnhancementScope(
     private val session: FirSession,
     private val useSiteScope: JavaClassUseSiteScope
-) : FirScope {
+) : FirScope() {
     private val owner: FirRegularClass = useSiteScope.symbol.fir
 
     private val javaTypeParameterStack: JavaTypeParameterStack =

compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/calls/Synthetics.kt

@@ -26,7 +26,7 @@ class FirSyntheticPropertiesScope(
     val session: FirSession,
     private val baseScope: FirScope,
     private val typeCalculator: ReturnTypeCalculator
-) : FirScope {
+) : FirScope() {
 
     val synthetic: MutableMap<ConeCallableSymbol, ConeVariableSymbol> = mutableMapOf()
 

compiler/fir/resolve/src/org/jetbrains/kotlin/fir/scopes/FirTypeParameterScope.kt

@@ -9,8 +9,8 @@ import org.jetbrains.kotlin.fir.declarations.FirTypeParameter
 import org.jetbrains.kotlin.fir.symbols.ConeClassifierSymbol
 import org.jetbrains.kotlin.name.Name
 
-interface FirTypeParameterScope : FirScope {
+abstract class FirTypeParameterScope : FirScope() {
-    val typeParameters: Map<Name, List<FirTypeParameter>>
+    abstract val typeParameters: Map<Name, List<FirTypeParameter>>
 
     override fun processClassifiersByName(
         name: Name,

compiler/fir/resolve/src/org/jetbrains/kotlin/fir/scopes/impl/AbstractFirOverrideScope.kt

@@ -19,7 +19,7 @@ import org.jetbrains.kotlin.fir.types.impl.ConeTypeParameterTypeImpl
 import org.jetbrains.kotlin.types.AbstractStrictEqualityTypeChecker
 import org.jetbrains.kotlin.utils.addToStdlib.cast
 
-abstract class AbstractFirOverrideScope(val session: FirSession) : FirScope {
+abstract class AbstractFirOverrideScope(val session: FirSession) : FirScope() {
     //base symbol as key
     val overrides = mutableMapOf<ConeCallableSymbol, ConeCallableSymbol?>()
 

compiler/fir/resolve/src/org/jetbrains/kotlin/fir/scopes/impl/FirAbstractProviderBasedScope.kt

@@ -12,7 +12,7 @@ import org.jetbrains.kotlin.fir.resolve.impl.FirDependenciesSymbolProviderImpl
 import org.jetbrains.kotlin.fir.scopes.FirScope
 
 abstract class FirAbstractProviderBasedScope(val session: FirSession, lookupInFir: Boolean = true) :
-    FirScope {
+    FirScope() {
     val provider = when (val symbolProvider = FirSymbolProvider.getInstance(session)) {
         is FirCompositeSymbolProvider -> symbolProvider.takeIf { !lookupInFir }?.providers?.find {
             it is FirDependenciesSymbolProviderImpl

compiler/fir/resolve/src/org/jetbrains/kotlin/fir/scopes/impl/FirClassDeclaredMemberScope.kt

@@ -36,7 +36,7 @@ fun declaredMemberScope(klass: FirRegularClass): FirClassDeclaredMemberScope {
         .declaredMemberScope(klass)
 }
 
-class FirClassDeclaredMemberScope(klass: FirRegularClass) : FirScope {
+class FirClassDeclaredMemberScope(klass: FirRegularClass) : FirScope() {
     private val callablesIndex: Map<Name, List<FirCallableSymbol>> = run {
         val result = mutableMapOf<Name, MutableList<FirCallableSymbol>>()
         for (declaration in klass.declarations) {

compiler/fir/resolve/src/org/jetbrains/kotlin/fir/scopes/impl/FirClassSubstitutionScope.kt

@@ -28,7 +28,7 @@ class FirClassSubstitutionScope(
     private val session: FirSession,
     private val useSiteScope: FirScope,
     substitution: Map<ConeTypeParameterSymbol, ConeKotlinType>
-) : FirScope {
+) : FirScope() {
 
     private val fakeOverrides = mutableMapOf<ConeCallableSymbol, ConeCallableSymbol>()
 

compiler/fir/resolve/src/org/jetbrains/kotlin/fir/scopes/impl/FirCompositeScope.kt

@@ -19,7 +19,7 @@ import org.jetbrains.kotlin.name.Name
 class FirCompositeScope(
     val scopes: MutableList<FirScope>,
     private val reversedPriority: Boolean = false
-) : FirScope {
+) : FirScope() {
     override fun processClassifiersByName(
         name: Name,
         position: FirPosition,

compiler/fir/resolve/src/org/jetbrains/kotlin/fir/scopes/impl/FirLocalScope.kt

@@ -15,7 +15,7 @@ import org.jetbrains.kotlin.fir.symbols.ConeVariableSymbol
 import org.jetbrains.kotlin.fir.symbols.impl.FirFunctionSymbol
 import org.jetbrains.kotlin.name.Name
 
-class FirLocalScope : FirScope {
+class FirLocalScope : FirScope() {
 
     val properties = mutableMapOf<Name, ConeVariableSymbol>()
     val functions = mutableMapOf<Name, ConeFunctionSymbol>()

compiler/fir/resolve/src/org/jetbrains/kotlin/fir/scopes/impl/FirMemberTypeParameterScope.kt

@@ -8,6 +8,6 @@ package org.jetbrains.kotlin.fir.scopes.impl
 import org.jetbrains.kotlin.fir.declarations.FirMemberDeclaration
 import org.jetbrains.kotlin.fir.scopes.FirTypeParameterScope
 
-class FirMemberTypeParameterScope(callableMember: FirMemberDeclaration) : FirTypeParameterScope {
+class FirMemberTypeParameterScope(callableMember: FirMemberDeclaration) : FirTypeParameterScope() {
     override val typeParameters = callableMember.typeParameters.groupBy { it.name }
 }

compiler/fir/resolve/src/org/jetbrains/kotlin/fir/scopes/impl/FirNestedClassifierScope.kt

@@ -15,7 +15,7 @@ import org.jetbrains.kotlin.name.Name
 class FirNestedClassifierScope(
     val classId: ClassId,
     private val symbolProvider: FirSymbolProvider
-) : FirScope {
+) : FirScope() {
 
     override fun processClassifiersByName(
         name: Name,

compiler/fir/resolve/src/org/jetbrains/kotlin/fir/scopes/impl/FirSelfImportingScope.kt

@@ -14,7 +14,7 @@ import org.jetbrains.kotlin.name.ClassId
 import org.jetbrains.kotlin.name.FqName
 import org.jetbrains.kotlin.name.Name
 
-class FirSelfImportingScope(val fqName: FqName, val session: FirSession) : FirScope {
+class FirSelfImportingScope(val fqName: FqName, val session: FirSession) : FirScope() {
 
     private val symbolProvider = FirSymbolProvider.getInstance(session)
 

compiler/fir/tree/src/org/jetbrains/kotlin/fir/scopes/FirScope.kt

@@ -12,23 +12,23 @@ import org.jetbrains.kotlin.fir.symbols.ConeFunctionSymbol
 import org.jetbrains.kotlin.fir.symbols.ConeVariableSymbol
 import org.jetbrains.kotlin.name.Name
 
-interface FirScope {
+abstract class FirScope {
     @Deprecated(
         "obsolete",
         replaceWith = ReplaceWith("processClassifiersByNameWithAction(name, position) { if (processor()) ProcessorAction.NEXT else ProcessorAction.STOP }.next()")
     )
-    fun processClassifiersByName(
+    open fun processClassifiersByName(
         name: Name,
         position: FirPosition,
         processor: (ConeClassifierSymbol) -> Boolean
     ): Boolean = true
 
-    fun processFunctionsByName(
+    open fun processFunctionsByName(
         name: Name,
         processor: (ConeFunctionSymbol) -> ProcessorAction
     ): ProcessorAction = NEXT
 
-    fun processPropertiesByName(
+    open fun processPropertiesByName(
         name: Name,
         processor: (ConeVariableSymbol) -> ProcessorAction
     ): ProcessorAction = NEXT