Fix lint issue

Author: Colengms

Extension/src/LanguageServer/protocolFilter.ts

@@ -8,6 +8,7 @@ import * as path from 'path';
 import * as vscode from 'vscode';
 import { Middleware } from 'vscode-languageclient';
 import * as util from '../common';
+import { logAndReturn } from '../Utility/Async/returns';
 import { Client } from './client';
 import { clients } from './extension';
 import { shouldChangeFromCToCpp } from './utils';
@@ -36,20 +37,20 @@ export function createProtocolFilter(): Middleware {
                         client.addFileAssociations(mappingString, "cpp");
                         client.sendDidChangeSettings();
                         // This will cause the file to be closed and reopened.
-                        vscode.languages.setTextDocumentLanguage(document, "cpp");
+                        void vscode.languages.setTextDocumentLanguage(document, "cpp");
                         return;
                     }
                     // client.takeOwnership() will call client.TrackedDocuments.add() again, but that's ok. It's a Set.
                     client.onDidOpenTextDocument(document);
                     client.takeOwnership(document);
-                    sendMessage(document).then(() => {
+                    void sendMessage(document).then(() => {
                         // For a file already open when we activate, sometimes we don't get any notifications about visible
                         // or active text editors, visible ranges, or text selection. As a workaround, we trigger
                         // onDidChangeVisibleTextEditors here, only for the first file opened.
                         if (!anyFileOpened) {
                             anyFileOpened = true;
                             const cppEditors: vscode.TextEditor[] = vscode.window.visibleTextEditors.filter(e => util.isCpp(e.document));
-                            client.onDidChangeVisibleTextEditors(cppEditors);
+                            client.onDidChangeVisibleTextEditors(cppEditors).catch(logAndReturn.undefined);
                         }
                     });
                 }
@@ -68,8 +69,8 @@ export function createProtocolFilter(): Middleware {
             if (me.TrackedDocuments.has(uriString)) {
                 me.onDidCloseTextDocument(document);
                 me.TrackedDocuments.delete(uriString);
-                sendMessage(document);
+                void sendMessage(document);
             }
-        },
+        }
     };
 }