Plugins: stop using QLatin1Char constructor for creating char literals

Required for porting away from QLatin1Char/QLatin1String in scope of
QTBUG-98434.

As a drive-by, fix qsizetype -> int narrowing conversion warnings for
the touched lines.

Change-Id: Id76add7e86b6dfb89f758a9efb0644067f0f44de
Reviewed-by: Marc Mutz <marc.mutz@qt.io>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/plugins/platforms/xcb/qxcbintegration.cpp b/src/plugins/platforms/xcb/qxcbintegration.cpp
index d47ed372a6..672e6d92a8 100644
--- a/src/plugins/platforms/xcb/qxcbintegration.cpp
+++ b/src/plugins/platforms/xcb/qxcbintegration.cpp
@@ -501,7 +501,7 @@ static QString argv0BaseName()
     const QStringList arguments = QCoreApplication::arguments();
     if (!arguments.isEmpty() && !arguments.front().isEmpty()) {
         result = arguments.front();
-        const int lastSlashPos = result.lastIndexOf(QLatin1Char('/'));
+        const int lastSlashPos = result.lastIndexOf(u'/');
         if (lastSlashPos != -1)
             result.remove(0, lastSlashPos + 1);
     }