* include/std/std_complex.h (complex<_Tp>): Properly indent
	to follow C++STYLE.
	(complex<>::__rep): New.
	(__complex_abs): New.  Dispatch to built-ins.
	(abs): Use them.
	(__complex_arg): New. Dispatch to built-ins.
	(arg): Use it.
	(__complex_cos): New. Dispatch to built-ins.
	(cos): Use it.
	(__complex_cosh): New. Dispatch to built-ins.
	(cosh): Use it.
	(__complex_exp): New. Dispatch to built-ins.
	(exp): Use it.
	(__complex_log): New. Dispatch to built-ins.
	(log): Use it.
	(__complex_sin): New. Dispatch to built-ins.
	(sin): Use it.
	(__complex_sinh): New. Dispatch to built-ins.
	(sinh): Use it.
	(__complex_sqrt): New. Dispatch to built-ins.
	(sqrt): Use it.
	(__complex_tan): New. Dispatch to built-ins.
	(tan): Use it.
	(__complex_tanh): New. Dispatch to built-ins.
	(tanh): Use it.
	(__complex_pow): New. Dispatch to built-ins.
	(pow): Use it.

From-SVN: r82453