re PR objc/27377 (false compiler warnings generated in Objective-C code)

gcc/
2009-03-00  David Ayers  <ayers@fsfe.org>

	PR objc/27377
	* c-typeck.c (build_conditional_expr): Emit ObjC warnings
	by calling objc_compare_types and surpress warnings about
	incompatible C pointers that are compatible ObjC pointers.
	
testsuite/
2009-03-00  David Ayers  <ayers@fsfe.org>

	PR objc/27377
	* objc.dg/conditional-1.m: New tests.

From-SVN: r145225