regex_automaton.h: Rearrange _NFA's layout.

regex_automaton.h: Rearrange _NFA's layout.

2013-09-02  Tim Shen  <timshen91@gmail.com>

	* regex_automaton.h: Rearrange _NFA's layout.
	* include/bits/regex_compiler.h: Add _AnyMatcher and _CharMatcher.
	  Rearrange _BracketMatcher's layout.
	  (_BracketMatcher<>::_M_add_char): Use set instead of vector for
	  _M_char_set.
	  (_BracketMatcher<>::_M_add_collating_element): Likewise.
	  (_BracketMatcher<>::_M_make_range): Likewise.
	* include/bits/regex_compiler.tcc (_Compiler<>::_M_atom): Use
	  apropriate constructors of matchers above.
	* testsuite/28_regex/algorithms/regex_match/ecma/char/anymatcher.cc:
	  New.
	* testsuite/28_regex/algorithms/regex_match/ecma/char/backref.cc: New.
	* testsuite/28_regex/algorithms/regex_match/ecma/char/empty_range.cc:
	  New.
	* testsuite/28_regex/algorithms/regex_match/ecma/char/emptygroup.cc:
	  New.
	* testsuite/28_regex/algorithms/regex_match/ecma/char/hex.cc: New.
	* testsuite/28_regex/algorithms/regex_match/ecma/wchar_t/anymatcher.cc:
	  New.
	* testsuite/28_regex/algorithms/regex_match/ecma/wchar_t/hex.cc: New.

From-SVN: r202189