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David Majda 0c39f1cf86 Fix labels leaking to outer scope
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.
8 years ago
..
generate-bytecode.js Fix labels leaking to outer scope 8 years ago
generate-js.js Detect newlines using charCodeAt instead of charCode 8 years ago
remove-proxy-rules.js Convert PEG.js code to strict mode 9 years ago
report-infinite-loops.js Report left recursion and infinite loops only as "possible" 9 years ago
report-left-recursion.js Report full rule chain in recursive rule errors 9 years ago
report-missing-rules.js Convert PEG.js code to strict mode 9 years ago