FIR: correctly process accessor symbols in derived classes

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

@@ -111,7 +111,7 @@ class JavaClassEnhancementScope(
                 ) as FirAccessorSymbol
             }
             else -> {
-                if (original is FirPropertySymbol) return original
+                if (original is FirPropertySymbol || original is FirAccessorSymbol) return original
                 error("Can't make enhancement for $original: `${firElement.render()}`")
             }
         }

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

@@ -100,7 +100,7 @@ class JavaClassUseSiteMemberScope(
                 processor(it)
             } else {
                 val overriddenBy = it.getOverridden(overrideCandidates)
-                if (overriddenBy == null && it is FirVariableSymbol<*>) {
+                if (overriddenBy == null) {
                     processor(it)
                 } else {
                     NEXT