Bug 666 pure

[hippo91]

Steps

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Description

This PR solves the issue #666.
The problem was that astroid could not infer the result of a call to append function because this function, itself, calls the concatenate function.
This last function is inferred thanks to the brain_numpy_core_multiarray module but only when the corresponding node is an astroid.Attribute (for example numpy.concatenate). It turns out that in the source of the append function the node that realises the call to concatenate is a astroid.Name. Thus the correction proposed here is to register the concatenate inference tip function in order to apply it, also, to astroid.Name.

Type of Changes

	Type
✓	🐛 Bug fix

Related Issue

Closes #666