fixes #2039

tests/typerel/tregionptrs2.nim

@@ -0,0 +1,23 @@
+
+# bug #2039
+
+type
+    RegionTy = object
+    ThingyPtr = RegionTy ptr Thingy
+    Thingy = object
+        next: ThingyPtr
+        name: string
+
+proc iname(t: ThingyPtr) = 
+    var x = t
+
+    while not x.isNil:
+        echo x.name
+        x = x.next
+
+proc go() = 
+    var athing : ThingyPtr
+
+    iname(athing)
+
+go()