[Bug fortran/57803] Wasted work in gfc_build_dummy_array_decl()

[pchang9 at cs dot wisc.edu]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57803

--- Comment #1 from Po-Chun Chang <pchang9 at cs dot wisc.edu> ---
Created attachment 30436
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=30436&action=edit
Suggested patch