An internal pointer of a wrapper object remains available after the object is freed

Defect 101485 (STATIC_C)
Checker WRAPPER_ESCAPE (subcategory none)
File: /src/mongo/s/sharding_test_fixture.cpp
Function mongo::ShardingTestFixture::setUp()
/src/mongo/s/sharding_test_fixture.cpp, line: 132
The internal representation of local "fixedExec" escapes into "this->_executor", but is destroyed when it exits scope.

        _executor = fixedExec.get();