Inconsistent display of QString when debugging QML/JS

Got different display of the same expressions for QStrings when debugging QML or JavaScript.

1. All Strings should be enclosed by quotes (like in "normal" C++ debugging)
1.b Quotes in Strings are not escaped
2. Strings holding escape sequences differ in "Locals and Expressions" view and "QML Inspector"
2.a Newline (\n) is shown as \n in "L&E", but is a real newline in "QML Inspector"
2.b Carriage Return (\r) is not shown at all in both views
2.c Horizontal tab (\t) is shown as a real horizontal tab in both views