Hi,

https://pharo.fogbugz.com/f/cases/16674/Navigate-from-Variables-to-AST-Node-accessing-that-variable

The Slice adds the method #astNodes to LiteralVariable, Slot and TemporaryVariable.

e.g. inspect

Object binding astNodes

With the magic of GTInspector, this is a browser that show the source for that AST node nicely highlighted: