/usr/lib/nodejs/acorn/src/ is in node-acorn 5.4.1+ds1-1.
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/usr/lib/nodejs/acorn/src/.eslintrc
/usr/lib/nodejs/acorn/src/bin/
/usr/lib/nodejs/acorn/src/bin/.eslintrc
/usr/lib/nodejs/acorn/src/bin/acorn.js
/usr/lib/nodejs/acorn/src/expression.js
/usr/lib/nodejs/acorn/src/identifier.js
/usr/lib/nodejs/acorn/src/index.js
/usr/lib/nodejs/acorn/src/location.js
/usr/lib/nodejs/acorn/src/locutil.js
/usr/lib/nodejs/acorn/src/loose/
/usr/lib/nodejs/acorn/src/loose/expression.js
/usr/lib/nodejs/acorn/src/loose/index.js
/usr/lib/nodejs/acorn/src/loose/parseutil.js
/usr/lib/nodejs/acorn/src/loose/state.js
/usr/lib/nodejs/acorn/src/loose/statement.js
/usr/lib/nodejs/acorn/src/loose/tokenize.js
/usr/lib/nodejs/acorn/src/lval.js
/usr/lib/nodejs/acorn/src/node.js
/usr/lib/nodejs/acorn/src/options.js
/usr/lib/nodejs/acorn/src/parseutil.js
/usr/lib/nodejs/acorn/src/scope.js
/usr/lib/nodejs/acorn/src/state.js
/usr/lib/nodejs/acorn/src/statement.js
/usr/lib/nodejs/acorn/src/tokencontext.js
/usr/lib/nodejs/acorn/src/tokenize.js
/usr/lib/nodejs/acorn/src/tokentype.js
/usr/lib/nodejs/acorn/src/util.js
/usr/lib/nodejs/acorn/src/walk/
/usr/lib/nodejs/acorn/src/walk/index.js
/usr/lib/nodejs/acorn/src/whitespace.js