Include declaration origin in testData.

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

@@ -1,9 +1,9 @@
 FILE /arrayAccess.kt
   PROPERTY public val p: kotlin.Int = 0
-    FIELD public val p: kotlin.Int = 0
+    FIELD PROPERTY_BACKING_FIELD public val p: kotlin.Int = 0
       EXPRESSION_BODY
         CONST Int type=kotlin.Int value='0'
-    FUN public fun <get-p>(): kotlin.Int
+    FUN DEFAULT_PROPERTY_ACCESSOR public fun <get-p>(): kotlin.Int
       BLOCK_BODY
         RETURN type=kotlin.Nothing from='<get-p>(): Int'
           GET_BACKING_FIELD 'p: Int' type=kotlin.Int operator=null