[GH-676] Fix wrong type name in __repr__ TypeError message

[jseop-lim]

Description

Fixes #676.

When __repr__ returns a non-string value, the TypeError message incorrectly reports the type of the object being repr'd instead of the return value's type, diverging from CPython.

AS-IS

TypeError: __repr__ returned non-string (type A)

(type of the object)

TO-BE

TypeError: __repr__ returned non-string (type bool)

(type of the return value, matching CPython)

Change

Pass result (the __repr__ return value) instead of obj (the object being repr'd) to raiseTypeError in PyObjectReprAsObjectNode.java. The equivalent __str__ path in PyObjectStrAsObjectNode.java already does this correctly.

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[jseop-lim]

sorry for wrong email in sign.