#2587 regression test for.c misbehaves

[Maarten Brock]

When I run the regression tests for.c generates a warning:
warning 85: in function testFor unreferenced local variable : 'i'
It is unclear which i that is. But when I look at the generated asm I see that the for loop variable i is assigned 43 after the call to g42(). And when I change the loop to count 2 iterations (and adapt the g42 assertion accordingly), I see it fails because it ran the loop only once.

[Erik Petrich]

Need to process the declaration before the for loop body so that the variable binds with the proper declaration.
Fixed in [r9853]