[clangd] zap a few warnings

Author: sam-mccall

clang-tools-extra/clangd/DumpAST.cpp

@@ -143,6 +143,7 @@ class DumpVisitor : public RecursiveASTVisitor<DumpVisitor> {
       TEMPLATE_ARGUMENT_KIND(Declaration);
       TEMPLATE_ARGUMENT_KIND(Template);
       TEMPLATE_ARGUMENT_KIND(TemplateExpansion);
+      TEMPLATE_ARGUMENT_KIND(UncommonValue);
 #undef TEMPLATE_ARGUMENT_KIND
     }
     llvm_unreachable("Unhandled ArgKind enum");

clang-tools-extra/clangd/FindTarget.cpp

@@ -1069,6 +1069,7 @@ class ExplicitReferenceCollector
     case TemplateArgument::Pack:
     case TemplateArgument::Type:
     case TemplateArgument::Expression:
+    case TemplateArgument::UncommonValue:
       break; // Handled by VisitType and VisitExpression.
     };
     return RecursiveASTVisitor::TraverseTemplateArgumentLoc(A);

clang-tools-extra/clangd/index/remote/Client.cpp

@@ -152,7 +152,8 @@ class IndexClient : public clangd::SymbolIndex {
               });
   }
 
-  llvm::unique_function<bool(llvm::StringRef) const> indexedFiles() const {
+  llvm::unique_function<bool(llvm::StringRef) const>
+  indexedFiles() const override {
     // FIXME: For now we always return "false" regardless of whether the file
     //        was indexed or not. A possible implementation could be based on
     //        the idea that we do not want to send a request at every