#120 Put tokens in builtin modules into global cache.

[Dobes V]

Not sure why, but if I type rad<ctrl-tab> it offers to
import the radians() function from turtle and not
math. I'd like to import the radians function from
math, but it isn't offered on my machine.

[Fabio Zadrozny]

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Actually, pydev does not search those tokens in builtin
modules, so, you have to import math and then use its
tokens, as it does not try to search those to put it in the
'global' cache it uses.

So, I'm changing it to a feature-request to make some
process to pass all builtin modules with the shell to get
all those tokens when the interpreter is set (currently it
gets all the tokens for not-builtin modules).

Cheers,

Fabio