ClangCodeModel: Fix callback handling when following symbolsv8.0.0

Make sure emitDone() is atomic with running the callback, so in case the
latter starts an event loop of its own, we won't be overtaken by
incoming signals, deleting the object from under us.

Task-number: QTCREATORBUG-27910
Change-Id: I586d7609974662bf391b12041f416aaa2a973ecb
Reviewed-by: Jarek Kobus <jaroslaw.kobus@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: Eike Ziller <eike.ziller@qt.io>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/plugins/clangcodemodel/clangdfollowsymbol.h b/src/plugins/clangcodemodel/clangdfollowsymbol.h
index fffe2c42b9..09094bbed5 100644
--- a/src/plugins/clangcodemodel/clangdfollowsymbol.h
+++ b/src/plugins/clangcodemodel/clangdfollowsymbol.h
@@ -55,7 +55,7 @@ signals:
     void done();
 
 private:
-    void emitDone();
+    void emitDone(const Utils::Link &link = {});
     class VirtualFunctionAssistProcessor;
     class VirtualFunctionAssistProvider;