lto-plugin.c: Include <hashtab.h>
* lto-plugin.c: Include <hashtab.h>
(sym_aux): Add next_conflict field to save conflict chains.
(plugin_file_info): Add conflicts symtab.
(parse_table_entry): Initialize aux->next_conflict.
(process_symtab): Increment found.
(dump_symtab): Add.
(finish_conflict_resolution): Add.
(free_symtab): Add.
(write_resolution): Remove symbols loop and move into
dump_symtab. Call dump_symtab for main symbol and conflicts table.
Call free_symtab to free conflicts table.
(SWAP): Add.
(eq_sym): Add.
(hash_sym): Add.
(symbol_strength): Add.
(resolve_conflicts): Add.
(claim_file_handler): Add n variable. Check return value of
process_symtab. Call resolve_conflicts.
From-SVN: r162915