Autocompletion in code editor should only suggest relevant symbols

[Roland Illig]

Is your feature request related to a problem? Please describe.
As a basic level programmer, I may have heard that Ctrl+Space provices autocompletion. When I press that shortcut in the code editor, I get really many suggestions. Most of them are not relevant for composing music or making noise.

The suggestions also include a raw PI at the bottom. But when I select this suggestion, I get a "ReferenceError: PI is not defined". This may be irritating for beginners, and the suggestion should rather be Math.PI.

Describe the solution you'd like
Only the relevant symbols are suggested. These are:

• Math functions and constants
• knobs
• predefined utility functions (if there are any; see the example programs in #17)
• variables and functions declared in the program itself
• other useful things I forgot ;)

[anuejn]

I really like that idea :)