Properties declared in primary constructors should have proper accessors in IR.

compiler/testData/ir/irText/expressions/arrayAugmentedAssignment1.txt

@@ -20,6 +20,11 @@ FILE /arrayAugmentedAssignment1.kt
       FIELD public final val x: kotlin.IntArray
         EXPRESSION_BODY
           GET_VAR 'value-parameter x: IntArray' type=kotlin.IntArray operator=INITIALIZE_PROPERTY_FROM_PARAMETER
+      FUN public final fun <get-x>(): kotlin.IntArray
+        BLOCK_BODY
+          RETURN type=kotlin.Nothing from='<get-x>(): IntArray'
+            GET_BACKING_FIELD 'x: IntArray' type=kotlin.IntArray operator=null
+              receiver: THIS of 'C' type=C
   FUN public fun testVariable(): kotlin.Unit
     BLOCK_BODY
       VAR var x: kotlin.IntArray