Let DebuggerUtility render closures
If a developer wants to debug a closure, the DebuggerUtility simply prints
Closure, which isn't really helpful here. Instead, the closure code should be rendered.
[FEATURE] Render closures with DebuggerUtility::var_dump()
DebuggerUtility::var_dump() is now able to render closures. The source
code of a closure is now rendered in the output.
Reviewed-by: Joerg Boesche <email@example.com>
Tested-by: Joerg Boesche <firstname.lastname@example.org>
Reviewed-by: Susanne Moog <email@example.com>
Tested-by: Susanne Moog <firstname.lastname@example.org>