Failed assertion in qv4ssa.cpp when loading QML file

The following QML code causes a crash (failed assertion) in the QML engine:

import QtQuick 2.1
Rectangle {
    function foo()
    {
        for(var i = 0; i < 1; i++)
        {
            if(i >= 0)
                break

            return
        }

    }
}

The output I receive:

ASSERT: "semi[y] == p" in file compiler\qv4ssa.cpp, line 281
Debug Error!

Program: C:\Qt\Qt5.2.0Beta\5.2.0-beta1\msvc2012\bin\Qt5Cored.dll
Module: 5.2.0
File: global\qglobal.cpp
Line: 2050

ASSERT: "semi[y] == p" in file compiler\qv4ssa.cpp, line 281

The bug can be triggered either by using QQmlApplicationEngine::load or Qt.createComponent.

The code above is actually a senseless, simplified example but this is a blocker for my project. (it seems to be about "conditional break before return")

This bug may be the same issue as QTBUG-34256.