CppEditor: Add test case for quickfix formatting

Also fixes an off-by-one error in the formatting code that was uncovered
by the test.

Change-Id: I013194e21cf37f318bb806bb60ea659b91b99fbf
Reviewed-by: David Schulz <david.schulz@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>

1 files changed, 9 insertions, 0 deletions

diff --git a/src/plugins/cppeditor/cppquickfixes.cpp b/src/plugins/cppeditor/cppquickfixes.cpp
index 77672a8569..93596f5ec4 100644
--- a/src/plugins/cppeditor/cppquickfixes.cpp
+++ b/src/plugins/cppeditor/cppquickfixes.cpp
@@ -3478,6 +3478,15 @@ private:
                 settings = dlg.settings();
             break;
         }
+        case InsertDefsFromDecls::Mode::Impl: {
+            for (Symbol * const func : std::as_const(unimplemented)) {
+                MemberFunctionImplSetting setting;
+                setting.func = func;
+                setting.defPos = DefPosImplementationFile;
+                settings << setting;
+            }
+            break;
+        }
         case InsertDefsFromDecls::Mode::Alternating: {
             int defPos = DefPosImplementationFile;
             const auto incDefPos = [&defPos] {