* c-exp.y (c_create_fundamental_type): New function to create

	* c-exp.y (c_create_fundamental_type):  New function to create
	language specific fundamental types for C.
	* m2-exp.y (m2_create_fundamental_type):  New function to create
	language specific fundamental types for Modula 2.
	* c-exp.y (c_language_defn, cplus_language_defn):  Add
	c_create_fundamental_type to language struct initializers.
	* m2-exp.y (m2_language_defn):  Add m2_create_fundamental_type
	to language struct initializers.
	* dwarfread.c (expression.h, language.h):  Include.
	* dwarfread.c (ftypes):  New array to hold fundamental types
	for current compilation unit.
	* dwarfread.c (cu_language_defn):  New pointer to language
	struct for language of current compilation unit.
	* dwarfread.c (dwarf_fundamental_type):  New function to
	create/lookup fundamental types.
	* dwarfread.c (set_cu_language):  Initialize cu_language_defn.
	* dwarfread.c (throughout):  Replace lookup_fundamental_type
	with dwarf_fundamental_type.
	* dwarfread.c (read_file_scope):  Zero out ftypes for each new
	compilation unit (may be different language or different objfile).
	* gdbtypes.c (lookup_fundamental_type):  Move actual type
	creations into language specific fundamental type creation
	functions and call via create_fundamental_type.  Add comment
	about this function being obsolescent.
	* gdbtypes.h (FT_BYTE, FT_UNSIGNED_BYTE):  New types, true byte
	sized signed and unsigned integers.
	* gdbtypes.h (FT_NUM_MEMBERS):  Increment, new types added.
	* language.c (language_def):  New function to lookup a language
	struct given it's enumeration.
	* language.h (struct language_defn):  Add la_fund_type, a pointer
	to a function that creates fundamental types for this language.
	* language.h (create_fundamental_type):  New macro to create
	fundamental types based on the current language.
	* language.h (language_def):  Add prototype.
	* language.c (unk_lang_create_fundamental_type):  New function
	for initializing language structs, calls error if called.
	* language.c (unk_language_defn, auto_language_defn,
	local_language_defn):  Use unk_lang_create_fundamental_type.
	**** start-sanitize-chill ****
	ch-exp.y (chill_create_fundamental_type):  New function.
	ch-exp.y (chill_language_defn):  Add chill_create_fundamental_type.
	ch-exp.y (_initialize_chill_exp):  BOOL types are only one byte.
	**** end-sanitize-chill ****