qdoc: Remove algorithm to find common prefix

HtmlGenerator::generateCompactList() no longer uses an algorithm to
find out a common prefix for classes/qml types when generating the
alphabetical lists. The common prefix argument is no longer optional.
To indicate there is no common prefix, pass an empty string as the
common prefix argument.

Task-number: QTBUG-33750
Change-Id: I4b44bbcff909fcea5c7bfd58c6796e303086bc68
Reviewed-by: Topi Reiniö <topi.reinio@digia.com>
Reviewed-by: Jerome Pasion <jerome.pasion@digia.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/tools/qdoc/htmlgenerator.h b/src/tools/qdoc/htmlgenerator.h
index 8cd8664dfc..f2525327e8 100644
--- a/src/tools/qdoc/htmlgenerator.h
+++ b/src/tools/qdoc/htmlgenerator.h
@@ -164,7 +164,7 @@ private:
                              const Node *relative,
                              const NodeMap &classMap,
                              bool includeAlphabet,
-                             QString commonPrefix = QString());
+                             QString commonPrefix);
     void generateFunctionIndex(const Node *relative);
     void generateLegaleseList(const Node *relative, CodeMarker *marker);
     void generateOverviewList(const Node *relative);