Allow to debug anonymous function

[ng-galien]

Debugging an anonymous plpg function can be a great feature.

• Detect we are in an anonymous function in the editor
• Create a temporary function with the anonymous code in the target
• Debug it in direct mode
• Delete the temporary function at the end of debugging

[ng-galien]

@cvas71 Hi, what about this proposal?

[cvas71]

Hi! The idea is interesting, especially since you can only debug functions and procedures that exist in the dictionary. How much will this affect the dictionary, and in particular the use of values for OIDs of such procedures? After all, the database will have to constantly produce a new unique value. The number of these values is not finite?
At the moment, when using the current version, it happens that the positioning of the cursor on the desired line gets lost. It is not possible to repeat it on purpose.