Tests: qhash - clear global variable use in stdHashImpl

`StdHashUsed` is set in the stdHashImpl, but the test does not ensure
that it is initialized before the test. This causes test failures with
-repeat.
Clearing the flag at the beginning of the test function fixes this
behaviour.

Pick-to: 6.10
Change-Id: I383611ce9368c6826cb5436a74e12bd73748491c
Reviewed-by: Tor Arne Vestbø <[email protected]>

1 files changed, 2 insertions, 0 deletions

diff --git a/tests/auto/corelib/tools/qhash/tst_qhash.cpp b/tests/auto/corelib/tools/qhash/tst_qhash.cpp
index b03750389bd..8ec9cb516d3 100644
--- a/tests/auto/corelib/tools/qhash/tst_qhash.cpp
+++ b/tests/auto/corelib/tools/qhash/tst_qhash.cpp
@@ -3153,6 +3153,8 @@ qHash(const StdHashKeyType<HasQHash> &s, size_t seed)
 template <typename T>
 void stdHashImpl()
 {
+    T::StdHashUsed = false;
+
     QHash<T, int> hash;
     for (int i = 0; i < 1000; ++i)
         hash.insert(T{i}, i);