QPartialOrdering: add lower-case flags for std/Qt:: compatibility

The misspelt flags (Less, etc) make it hard to use QPartialOrdering
interchangably with Qt or std ordering types, e.g. in generic code.

[ChangeLog][QtCore][QPartialOrdering] Added a set of lower-case flags
(::less, ::greater, etc) to improve source-compatibility with
{Qt,std}::partial_ordering.

Change-Id: I160600c01c4a2ab72c7b217a306d08045e363578
Reviewed-by: Ivan Solovev <ivan.solovev@qt.io>

1 files changed, 5 insertions, 0 deletions

diff --git a/tests/auto/corelib/global/qcompare/tst_qcompare.cpp b/tests/auto/corelib/global/qcompare/tst_qcompare.cpp
index e02eb61fde..8dc3cf5a37 100644
--- a/tests/auto/corelib/global/qcompare/tst_qcompare.cpp
+++ b/tests/auto/corelib/global/qcompare/tst_qcompare.cpp
@@ -25,6 +25,11 @@ private slots:
 
 void tst_QCompare::legacyPartialOrdering()
 {
+    static_assert(QPartialOrdering::Unordered ==  QPartialOrdering::unordered);
+    static_assert(QPartialOrdering::Less ==       QPartialOrdering::less);
+    static_assert(QPartialOrdering::Equivalent == QPartialOrdering::equivalent);
+    static_assert(QPartialOrdering::Greater ==    QPartialOrdering::greater);
+
     static_assert(QPartialOrdering::Unordered == QPartialOrdering::Unordered);
     static_assert(QPartialOrdering::Unordered != QPartialOrdering::Less);
     static_assert(QPartialOrdering::Unordered != QPartialOrdering::Equivalent);