logilab-astng #123074 Dict __getitem__ inference is broken [validation pending]

The actual implementation of getitem for dicts contains a bug, and the subscript inference does not work on dict literals, although they would have a getitem inference method (if it wasn't broken to begin with).

prioritynormal
typebug
done in0.24.3
load left0.000
closed by#6e82e28d4a0d Add support for inference of subscript operations on dict literals. Closes #123074
patchAdd support for inference of subscript operations on dict literals. [applied]