[FIR] Accessor symbol is now a property symbol, not a function symbol

compiler/fir/tree/src/org/jetbrains/kotlin/fir/declarations/synthetic/FirSyntheticPropertyAccessor.kt

@@ -21,7 +21,7 @@ import org.jetbrains.kotlin.fir.visitors.FirTransformer
 import org.jetbrains.kotlin.fir.visitors.FirVisitor
 
 class FirSyntheticPropertyAccessor(
-    private val delegate: FirSimpleFunction,
+    val delegate: FirSimpleFunction,
     override val isGetter: Boolean
 ) : FirPropertyAccessor() {
     override val source: FirSourceElement?

compiler/fir/tree/src/org/jetbrains/kotlin/fir/symbols/impl/FirFunctionSymbol.kt

@@ -36,7 +36,7 @@ class FirConstructorSymbol(
 class FirAccessorSymbol(
     callableId: CallableId,
     override val accessorId: CallableId
-) : FirFunctionSymbol<FirSimpleFunction>(callableId), AccessorSymbol
+) : FirPropertySymbol(callableId), AccessorSymbol
 
 // ------------------------ unnamed ------------------------