Rename objc_lifetime -> objc_ownership, and modify diagnostics to talk about 'ownership', not 'lifetime'.

rdar://9477613.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133779 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaOverload.cpp b/lib/Sema/SemaOverload.cpp
index 944d481..7686080 100644
--- a/lib/Sema/SemaOverload.cpp
+++ b/lib/Sema/SemaOverload.cpp
@@ -6805,7 +6805,7 @@
     }
 
     if (FromQs.getObjCLifetime() != ToQs.getObjCLifetime()) {
-      S.Diag(Fn->getLocation(), diag::note_ovl_candidate_bad_lifetime)
+      S.Diag(Fn->getLocation(), diag::note_ovl_candidate_bad_ownership)
         << (unsigned) FnKind << FnDesc
         << (FromExpr ? FromExpr->getSourceRange() : SourceRange())
         << FromTy