hpjyg03, hpjyg04, hpjyg16, hpjyg22

[David Taylor <taylor at cygnus dot com>]

All of hpjyg04 and hpjyg16 have been committed.  The language parts of
hpjyg03 and hpjyg22 have been committed.  Specifically:

	* language.h (longest_raw_hex_string, longest_local_hex_string,
	longest_local_hex_string_custom): Declare.
	* language.c: New functions, and misc. fixes.
	(longest_raw_hex_string, longest_local_hex_string,
	longest_local_hex_string_custom): New functions.

	* c-typeprint.c
	(c_type_print_varspec_prefix,c_type_print_varpsec_suffix): Add
	TYPE_CODE_TEMPLATE case and default case.
	(c_type_print_base): Revise how demangled_no_class is found;
	print '}' before printing local file:line info.
	* c-valprint.c (c_value_print): print reference type to class.

	* valarith.c (value_binop): Add support for exponentiation,
	equal, not equal.
	(my_strcmp): New function.
	(value_equal,value_less): Add string equality comparison support.

	* m2-exp.y (lex): add default case statement to capture
	unhandled token and call error().

Later,

David