tst_QScriptEngine::infiniteRecursion() crashes on Symbian

This test (found in tests/auto/qscriptengine) evaluates a script that calls a JavaScript function recursively.
It should cause the VM to throw a stack overflow error, but on Symbian it causes a crash.

One possibility is that the VM's internal register file grows outside memory bounds (see call to slideRegisterWindowForCall() in the implementation of op_call in Interpreter.cpp).