objc-act.c: New command line option -fconstant-string-class to allow specifying a...

objc-act.c: New command line option -fconstant-string-class to allow specifying a user...

Sun Aug  6 00:54:42 2000  Ovidiu Predescu  <ovidiu@cup.hp.com>

	* objc/objc-act.c: New command line option -fconstant-string-class
	to allow specifying a user defined constant string class,
	different from NXConstantString.

	* toplev.c: Moved the Objective-C specific options to
	objc/lang-options.h.

	* objc/lang-options.h: Moved the Objective-C specific options from
	toplev.c. Added -fconstant-string-class.

From-SVN: r35519