[arcmt] In GC, change '__weak' -> '__unsafe_unretained' when applied
to objects of classes that don't support ARC weak
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@143976 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/ARCMigrate/Transforms.h b/lib/ARCMigrate/Transforms.h
index 3f1e737..7960a7d 100644
--- a/lib/ARCMigrate/Transforms.h
+++ b/lib/ARCMigrate/Transforms.h
@@ -137,7 +137,8 @@
//===----------------------------------------------------------------------===//
/// \brief Determine whether we can add weak to the given type.
-bool canApplyWeak(ASTContext &Ctx, QualType type);
+bool canApplyWeak(ASTContext &Ctx, QualType type,
+ bool AllowOnUnknownClass = false);
/// \brief 'Loc' is the end of a statement range. This returns the location
/// immediately after the semicolon following the statement.