[LC] Fix invalid nullability for properties

Fixed #KT-46097 and #KT-41671

compiler/light-classes/src/org/jetbrains/kotlin/asJava/elements/lightAnnotations.kt

@@ -346,13 +346,14 @@ open class KtLightNullabilityAnnotation<D : KtLightElement<*, PsiModifierListOwn
             annotatedElement.bodyExpression?.let { it.getType(it.analyze()) }?.let { return it }
         }
         if (annotatedElement is KtProperty) {
-            annotatedElement.initializer?.let { it.getType(it.analyze()) }?.let { return it }
+            (annotatedElement.initializer ?: annotatedElement.getter?.initializer)
+                ?.let { it.getType(it.analyze()) }?.let { return it }
             annotatedElement.delegateExpression?.let { it.getType(it.analyze())?.arguments?.firstOrNull()?.type }?.let { return it }
         }
 
         return annotatedElement.getParentOfType<KtProperty>(false)?.let {
             it.typeReference?.getType()
-                ?: it.initializer
+                ?: (it.initializer ?: it.getter?.initializer)
                     ?.let { initializer -> initializer.getType(initializer.analyze()) }
         }
     }

compiler/light-classes/src/org/jetbrains/kotlin/asJava/lightClassUtils.kt

@@ -253,7 +253,7 @@ fun fastCheckIsNullabilityApplied(lightElement: KtLightElement<*, PsiModifierLis
         }
 
         val parent = annotatedElement.parent.parent
-        if (parent is KtModifierListOwner && parent.isPrivate()) return false
+        if (parent is KtModifierListOwner && parent !is KtPrimaryConstructor && parent.isPrivate()) return false
 
         if (parent is KtPropertyAccessor) {
             val propertyOfAccessor = parent.parent