[NFC] Modernize enum 'UnqualifiedId::IdKind' into a scoped enum UnqualifiedIdKind.

llvm-svn: 321574
diff --git a/clang/lib/Parse/ParseDecl.cpp b/clang/lib/Parse/ParseDecl.cpp
index 35bb6a9..3a548fc 100644
--- a/clang/lib/Parse/ParseDecl.cpp
+++ b/clang/lib/Parse/ParseDecl.cpp
@@ -2201,7 +2201,7 @@
       // FIXME: This check should be for a variable template instantiation only.
 
       // Check that this is a valid instantiation
-      if (D.getName().getKind() != UnqualifiedId::IK_TemplateId) {
+      if (D.getName().getKind() != UnqualifiedIdKind::IK_TemplateId) {
         // If the declarator-id is not a template-id, issue a diagnostic and
         // recover by ignoring the 'template' keyword.
         Diag(Tok, diag::err_template_defn_explicit_instantiation)