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Labels in expressions like "(a:"a")" or "(a:"a" b:"b" c:"c")" were visible to the outside despite being wrapped in parens. This commit makes them invisible, as they should be. Note this required introduction of a new "group" AST node, whose purpose is purely to provide label scope isolation. This was necessary because "label" and "sequence" nodes don't (and can't!) provide this isolation themselves. Part of a fix of #396.
|6 years ago|
|impact||6 years ago|