Remove usages of deprecated APIs of corelib

- Replaced the usages of deprecated APIs of corelib by corresponding
  alternatives in the library code and documentation.

- Modified the tests to make them build when deprecated APIs disabled:
    * Made the the parts of the tests testing the deprecated APIs to
      be compiled conditionally, only when the corresponding methods are
      enabled.
    * If the test-case tests only the deprecated API, but not the
      corresponding replacement, added tests for the replacement.

Task-number: QTBUG-76491
Task-number: QTBUG-76539
Task-number: QTBUG-76541
Change-Id: I62ed4a5b530a965ec3f6502c6480808f938921aa
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>

1 files changed, 4 insertions, 0 deletions

diff --git a/tests/auto/corelib/tools/qline/tst_qline.cpp b/tests/auto/corelib/tools/qline/tst_qline.cpp
index 915a24a1f6..0418daf640 100644
--- a/tests/auto/corelib/tools/qline/tst_qline.cpp
+++ b/tests/auto/corelib/tools/qline/tst_qline.cpp
@@ -53,8 +53,10 @@ private slots:
     void testNormalVector();
     void testNormalVector_data();
 
+#if QT_DEPRECATED_SINCE(5, 14)
     void testAngle();
     void testAngle_data();
+#endif
 
     void testAngle2();
     void testAngle2_data();
@@ -378,6 +380,7 @@ void tst_QLine::testNormalVector()
     QCOMPARE(n.dy(), qreal(nvy));
 }
 
+#if QT_DEPRECATED_SINCE(5, 14)
 void tst_QLine::testAngle_data()
 {
     QTest::addColumn<double>("xa1");
@@ -426,6 +429,7 @@ void tst_QLine::testAngle()
     double resultAngle = a.angle(b);
     QCOMPARE(qRound(resultAngle), qRound(angle));
 }
+#endif
 
 void tst_QLine::testAngle2_data()
 {