mishoo/UglifyJS2 — pull request #265 by M2Ys4U (2013-08-10 13:19:32+00:00)
Title: Add option to disable warnings when generating source map

Uglify generates a lot of warnings when generating the compressed code + source map for my project, spamming stdout with lines such as ``WARN: Couldn't figure out mapping for file.js:1,0 → 1,1 []``

This patch adds an option to disable these warnings in `lib/output.js`