regex_compiler.h (_AnyMatcher<>::_AnyMatcher(), [...]): Fix _AnyMatcher behavior of POSIX style and move _M_flags to template parameter...

2014-01-07  Tim Shen  <timshen91@gmail.com>

	* include/bits/regex_compiler.h (_AnyMatcher<>::_AnyMatcher(),
	_AnyMatcher<>::operator(), _AnyMatcher<>::_M_apply(),
	_CharMatcher<>::_CharMatcher(), _CharMatcher<>::_M_translate(),
	_BracketMatcher<>::_BracketMatcher(), _BracketMatcher<>::operator(),
	_BracketMatcher<>::_M_add_char(),
	_BracketMatcher<>::_M_add_collating_element(),
	_BracketMatcher<>::_M_add_equivalence_class(),
	_BracketMatcher<>::_M_add_character_class(),
	_BracketMatcher<>::_M_make_range(), _BracketMatcher<>::_M_ready(),
	_BracketMatcher<>::_M_apply(), _BracketMatcher<>::_M_make_cache()):
	Fix _AnyMatcher behavior of POSIX style and move _M_flags
	to template parameter; Add cache for _BracketMatcher. Adjust
	declarations from here...
	* include/bits/regex.h (basic_regex<>::imbue()): ...to here. Also,
	imbuing a regex will trigger a recompilation to rebuild the cache.
	* include/bits/regex_compiler.tcc (_Compiler<>::_M_atom(),
	_Compiler<>::_M_bracket_expression()): Adjust matchers' caller for
	different template bool parameters.
	* include/bits/regex_executor.h: Remove unnecessary declarations.
	* include/std/regex: Adjust including orders.
	* testsuite/28_regex/traits/char/user_defined.cc: New.
	* testsuite/28_regex/traits/wchar_t/user_defined.cc: New.

From-SVN: r206400