Issue 1619: Option to log function call missing from context menu

Steps to reproduce

1. Open Firebug
2. Enable the Script and Console panel and switch to the Script panel
3. Reload the page
4. Click the button Say hello above
   ⇒ The debugger should halt at line 13
5. Right-click on sayHello() in line 8
   ⇒ There should be an option Log Calls to "sayHello" in the context menu
6. Right-click into the function body (e. g. line 11)

Observed result

• No point Log Calls to "sayHello"

Expected result

• Log Calls to "sayHello" should be shown inside the context menu, because we are inside the function