symtab init_symbols: Simplify again, ignore arg stuff in last commit.
symtab init_symbols: Simplify again, ignore arg stuff in last commit.

The new try_seed_call_sig either allocates both the sig and the space for
args, or neither. So this would have fixed the bug mentioned in the last
commit too.

FascinatedBox/lily,FascinatedBox/lily,jesserayadkins/lily,FascinatedBox/lily,FascinatedBox/lily,jesserayadkins/lily,jesserayadkins/lily