* blockframe.c (find_pc_sect_partial_function): allow for the possi-
bility of multiple symbols at the same address when finding high.
* breakpoint.c (resolve_sal_pc): if the function based section lookup
fails, try getting the section from the minimal symbol table.
* parse.c (write_exp_msymbol): use symbol_overlayed_address to get
the LMA of a minimal symbol if unmapped.
* symtab.c (find_line_symtab): change interface to return symtab
containing the best linetable found.
(decode_line_1): use find_line_symtab to set val.symtab. This should
improve support for source files with multiple symtabs.
* tm-txvu.h: include tm-mips64.h instead of starting from scratch.