[FIR] Run CFA for member properties even if they have initializer

^KT-56678 Fixed
^KT-56682 Fixed

compiler/testData/diagnostics/tests/controlFlowAnalysis/delegatedMemberProperyWriteInInit.fir.kt

@@ -0,0 +1,40 @@
+// DIAGNOSTICS: -UNUSED_PARAMETER
+
+import kotlin.reflect.KProperty
+
+interface Delegate<V> {
+    operator fun getValue(thisRef: Any?, property: KProperty<*>): V = null!!
+
+    operator fun setValue(thisRef: Any?, property: KProperty<*>, value: V) {}
+}
+
+fun <V> delegate(): Delegate<V> = null!!
+fun consume(x: Any?) {}
+
+class A {
+    init {
+        consume(<!UNINITIALIZED_VARIABLE!>x<!>)
+        <!INITIALIZATION_BEFORE_DECLARATION!>x<!> = 10
+    }
+
+    val x: Int by delegate()
+
+    init {
+        <!VAL_REASSIGNMENT!>x<!> = 10
+        consume(x)
+    }
+}
+
+class B {
+    init {
+        consume(<!UNINITIALIZED_VARIABLE!>x<!>)
+        <!INITIALIZATION_BEFORE_DECLARATION!>x<!> = 10
+    }
+
+    var x: Int by delegate()
+
+    init {
+        x = 10
+        consume(x)
+    }
+}