QtCore: replace QLatin1String/QLatin1Char with _L1/u'' where applicable

As a drive-by, did also minor refactorings/improvements.

Task-number: QTBUG-98434
Change-Id: I81964176ae2f07ea63674c96f47f9c6aa046854f
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Anton Kudryavtsev <antkudr@mail.ru>

1 files changed, 4 insertions, 2 deletions

diff --git a/src/corelib/kernel/qvariant.cpp b/src/corelib/kernel/qvariant.cpp
index 13c90f2578..72dce5e32f 100644
--- a/src/corelib/kernel/qvariant.cpp
+++ b/src/corelib/kernel/qvariant.cpp
@@ -90,6 +90,8 @@
 
 QT_BEGIN_NAMESPACE
 
+using namespace Qt::StringLiterals;
+
 namespace { // anonymous used to hide QVariant handlers
 
 /*!
@@ -154,11 +156,11 @@ static qlonglong qConvertToNumber(const QVariant::Private *d, bool *ok, bool all
         if (*ok)
             return l;
         if (allowStringToBool) {
-            if (s == QLatin1String("false") || s == QLatin1String("0")) {
+            if (s == "false"_L1 || s == "0"_L1) {
                 *ok = true;
                 return 0;
             }
-            if (s == QLatin1String("true") || s == QLatin1String("1")) {
+            if (s == "true"_L1 || s == "1"_L1) {
                 *ok = true;
                 return 1;
             }