[FIR2IR] Introduce & use declaration-based SymbolTable.enter(leave)Scope

compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/util/SymbolTable.kt

@@ -947,10 +947,18 @@ open class SymbolTable(
         scopedSymbolTables.forEach { it.enterScope(owner) }
     }
 
+    fun enterScope(owner: IrDeclaration) {
+        enterScope(owner.descriptor)
+    }
+
     override fun leaveScope(owner: DeclarationDescriptor) {
         scopedSymbolTables.forEach { it.leaveScope(owner) }
     }
 
+    fun leaveScope(owner: IrDeclaration) {
+        leaveScope(owner.descriptor)
+    }
+
     fun referenceValue(value: ValueDescriptor): IrValueSymbol =
         when (value) {
             is ParameterDescriptor ->