Start migrating code to use `for x : iterable`.
`in` is too good of a variable name to waste on a loop
iterator specifier.
@@ -944,6 +944,8 @@ forstmt : Tfor optexprln loopcond optexprln block
{$$ = mkloopstmt($1->loc, $2, $3, $4, $5);}
| Tfor expr Tin exprln block
{$$ = mkiterstmt($1->loc, $2, $4, $5);}
+ | Tfor expr Tcolon exprln block
+ {$$ = mkiterstmt($1->loc, $2, $4, $5);}
| Tfor decl Tendln loopcond optexprln block {
//Node *init;
if ($2.nn != 1)
