qmltestrunner reports a wrong LOC for failing tests

PRECONDITIONS OR PREVIOUS STATUS:
having a qml unit test using the compare() that fails

STEPS LEADING TO PROBLEM AND OUTCOME:
Run qmltestrunner, and look at the reported "Loc". A line in a wrong file is
shown.

EXPECTED OUTCOME:
"Loc": of the file/line with the failing comapre() tests

Here an example output:

FAIL! : qmltestrunner::mytest::test_loc() Compared values are not the
same
Actual (): 114
Expected (): 100
Loc: [QtTest/TestCase.qml(473)]