These attributes are not supported by GCC and should not be in the gnu namespace. Switching from the GCC spelling to the GNU spelling so that they are only supported with __attribute__(()).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@316186 91177308-0d34-0410-b5e6-96231b3b80d8

Author: AaronBallman

include/clang/Basic/Attr.td

@@ -1758,23 +1758,23 @@ def StdCall : InheritableAttr {
 }
 
 def SwiftCall : InheritableAttr {
-  let Spellings = [GCC<"swiftcall">];
+  let Spellings = [GNU<"swiftcall">];
 //  let Subjects = SubjectList<[Function]>;
   let Documentation = [SwiftCallDocs];
 }
 
 def SwiftContext : ParameterABIAttr {
-  let Spellings = [GCC<"swift_context">];
+  let Spellings = [GNU<"swift_context">];
   let Documentation = [SwiftContextDocs];
 }
 
 def SwiftErrorResult : ParameterABIAttr {
-  let Spellings = [GCC<"swift_error_result">];
+  let Spellings = [GNU<"swift_error_result">];
   let Documentation = [SwiftErrorResultDocs];
 }
 
 def SwiftIndirectResult : ParameterABIAttr {
-  let Spellings = [GCC<"swift_indirect_result">];
+  let Spellings = [GNU<"swift_indirect_result">];
   let Documentation = [SwiftIndirectResultDocs];
 }