Fix %select numbering confusion between diagnostic and Diag call.

llvm-svn: 194281

clang/lib/Parse/ParseDeclCXX.cpp

@@ -1249,7 +1249,7 @@ void Parser::ParseClassSpecifier(tok::TokenKind TagTokKind,
         << (TemplateInfo.Kind == ParsedTemplateInfo::ExplicitInstantiation)
         << (TagType == DeclSpec::TST_class? 0
             : TagType == DeclSpec::TST_struct? 1
-            : TagType == DeclSpec::TST_interface? 2
+            : TagType == DeclSpec::TST_union? 2
             : 3)
         << Name
         << SourceRange(LAngleLoc, RAngleLoc);

clang/test/Parser/cxx-template-decl.cpp

@@ -116,6 +116,7 @@ void f2() {
 
 // PR3844
 template <> struct S<int> { }; // expected-error{{explicit specialization of non-template struct 'S'}}
+template <> union U<int> { }; // expected-error{{explicit specialization of non-template union 'S'}}
 
 namespace PR6184 {
   namespace N {