* symtab.h (domain_enum): Split in two...

	* symtab.h (domain_enum): Split in two...
	(enum search_domain): New.
	(search_symbols): Update.
	* symtab.c (print_symbol_info, symtab_symbol_info): Remove
	redundant declarations.
	(search_symbols): Change 'kind' argument to search_domain.
	Update.
	(print_symbol_info): Likewise.
	(symtab_symbol_info): Likewise.
	* symfile.h (struct quick_symbol_functions)
	<pre_expand_symtabs_matching>: Change type of 'kind' argument.
	<expand_symtabs_matching>: Likewise.
	* psymtab.c (pre_expand_symtabs_matching_psymtabs): Update.
	(expand_symtabs_matching_via_partial): Update.
	* dwarf2read.c (dw2_pre_expand_symtabs_matching): Update.
	(dw2_expand_symtabs_for_function): Update.
	* block.h: Moved anonymous enum...
	* defs.h (enum block_enum): ... here.  Now named.