[RFA] Assuming malloc exists in callfwmall.exp

[Michael Elizabeth Chastain]

Hi Jim,

> So the real disagreement is whether this is a valuable thing to test
> for.  Since I cannot imagine any reasonable inferior function
> invocation mechanism that would rely on the existence of malloc, I
> think it's as useless to test for that as to test for, say, the
> ability of GDB to handle functions named `t_structs_i' (which
> callfwmall also tests for us!).

Ah, yeah, now we are talking about the same thing, just disagreeing.
Which is how I hope to leave it.

Michael