40347
14364 tiny code critique cleanup in Ring	https://pharo.fogbugz.com/f/cases/1436414358 PseudoClass DNU printHierarchy in FileContentsBrowser	https://pharo.fogbugz.com/f/cases/1435814254 AST method replaceWith: does not change source interval	https://pharo.fogbugz.com/f/cases/14254

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