Don't warn on category implementing a method, if

declated method in the class belongs to a synthesized
property getter/setter. // rdar://10014946


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138598 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Sema/SemaDeclObjC.cpp

@@ -1488,7 +1488,7 @@ void Sema::MatchAllMethodDeclarations(const llvm::DenseSet<Selector> &InsMap,
         if (!WarnExactMatch)
           WarnConflictingTypedMethods(ImpMethodDecl, MethodDecl,
                                       isa<ObjCProtocolDecl>(CDecl));
-        else
+        else if (!MethodDecl->isSynthesized())
           WarnExactTypedMethods(ImpMethodDecl, MethodDecl,
                                isa<ObjCProtocolDecl>(CDecl));
       }

test/SemaObjC/protocol-implementing-class-methods.m

@@ -26,3 +26,16 @@
 - (void) : (double) arg{}; // expected-warning {{category is implementing a method which will also be implemented by its primary class}}
 - (void) CEMeth {}; // expected-warning {{category is implementing a method which will also be implemented by its primary class}}
 @end
+
+// rdar://10014946
+typedef char BOOL;
+@interface I
+{
+  BOOL allowsDeleting;
+}
+@property (nonatomic, assign, readwrite) BOOL allowsDeleting;
+@end
+
+@implementation I(CAT)
+- (BOOL) allowsDeleting { return 1; }
+@end