* mipsread.c (UNSAFE_DATA_ADDR): Remove MIPS-host-specific

* mipsread.c (UNSAFE_DATA_ADDR):  Remove MIPS-host-specific
definition, replace with portable one.
* remote-nindy.c:  Lint.
(nindy_wait):  Return type is int, result is inferior_pid.
* symmisc.c (dump_psymtab):  Only print section_offsets if set.
(initialize_symmisc):  Remove empty function.
* tm-spc-noun.h, tm-sun4os4.h, tm-sun4sol2.h (STACK_END_ADDRESS):
Remove obsolete, misspelled macro.
* doc/gdbint.texinfo:  Document obsolete STACK_END_ADDR.
(all @node commands):  Use new form to avoid nitpicking errors.
* doc/gdbint.texinfo:  Document host/native/target split.