In gcc/objc/:
2010-12-30  Nicola Pero  <nicola.pero@meta-innovation.com>

	* objc-act.c (objc_add_method): When emitting an error because a
	method with the same name but conflicting types is found in the
	same class or category interface, print a note with the location
	of the original method.  Also, improved the error message to
	clearly state that the conflict is due to conflicting types, and
	produce it for protocols as well.  Emit an error if two identical
	methods are declared in a protocol, but one is @required and the
	other one is @optional.  When

In gcc/testsuite/:
2010-12-30  Nicola Pero  <nicola.pero@meta-innovation.com>
	
	* objc.dg/class-extension-3.m: Updated.
	* objc.dg/method-1.m: Updated.
	* objc.dg/method-conflict-1.m: New.
	* objc.dg/method-conflict-2.m: New.	
	* obj-c++.dg/class-extension-3.mm: Updated.
	* obj-c++.dg/method-8.mm: Updated.
	* obj-c++.dg/method-conflict-1.mm: New.
	* obj-c++.dg/method-conflict-2.mm: New.

From-SVN: r168350