[Freeciv-Dev] autodeclaired macro arguments

[Thue <thue@xxxxxxx>]

With this patch the macros adjc_iterate, square_iterate and iterate_outward 
declaire the arguments they iterate with automatically. IE, instead of 

int x, y
square_iterate(x,y) {
  do_something(x, y);
square_iterate_end;

you just do 

square_iterate(x,y) {
  do_something(x, y);
square_iterate_end;

(as it is already done in some other macros like unit_list_iterate)
-Thue

macro_auto.diff
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