LanguageClient: Add the project display name to the client name

If the client was opened for a specific project.

Change-Id: Iafc9f5d46d06e2e656702260f297d6b2b998a431
Reviewed-by: Christian Stenger <christian.stenger@qt.io>

src/plugins/languageclient/client.h

@@ -87,7 +87,7 @@ public:
     // basic properties
     Utils::Id id() const { return m_id; }
     void setName(const QString &name) { m_displayName = name; }
-    QString name() const { return m_displayName; }
+    QString name() const;
     void sendContent(const LanguageServerProtocol::IContent &content);
     void cancelRequest(const LanguageServerProtocol::MessageId &id);