fixes #292

tests/compile/teffects1.nim

@@ -0,0 +1,17 @@
+
+type
+  PMenu = ref object
+  PMenuItem = ref object
+
+proc createMenuItem*(menu: PMenu, label: string, 
+                     action: proc (i: PMenuItem, p: pointer) {.cdecl.}) = nil
+
+var s: PMenu
+createMenuItem(s, "Go to definition...",
+      proc (i: PMenuItem, p: pointer) {.cdecl.} =
+        try:
+          echo(i.repr)
+        except EInvalidValue:
+          echo("blah")
+)
+