QDoc: Use correct node type string for \since in shared comments

Shared comment nodes were not handled as a special case when generating
"This [class/function/method/type/etc] was introduced in" strings when
QDoc encountered a \since command. These ended up with the default
value, "documentation", which led to unexpected text in the
documentation.

* Add handling of shared comment nodes and get the node type from the
  first node in the collective.
* Amend generated output test to cover this scenario.

Fixes: QTBUG-82534
Change-Id: I444e95e0214f312649ec2720c23c98e698402abf
Reviewed-by: Kai Koehne <kai.koehne@qt.io>
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>

1 files changed, 4 insertions, 0 deletions

diff --git a/src/qdoc/generator.cpp b/src/qdoc/generator.cpp
index abf0602df..bdeeec2be 100644
--- a/src/qdoc/generator.cpp
+++ b/src/qdoc/generator.cpp
@@ -2219,6 +2219,10 @@ QString Generator::typeString(const Node *node)
     case Node::JsModule:
     case Node::QmlModule:
         return "module";
+    case Node::SharedComment: {
+        const auto &collective = static_cast<const SharedCommentNode *>(node)->collective();
+        return collective.first()->nodeTypeString();
+    }
     default:
         return "documentation";
     }