GCC's logs are useless

[Piotrek Koszuliński]

The GCC does not say where the WARNING is. It just says it's in en.js, but there are dozens of en.js files.

Logs:

com.google.javascript.jscomp.LoggerErrorManager println
WARNING: en.js:5: WARNING - Parse error. Internet Explorer has a non-standard intepretation of trailing commas. Arrays will have the wrong length and objects will not parse at all.
} );
 ^

[Wiktor Walc]

As a temporary workaround increasing --debug-level may help in finding the proper file.

[Piotrek Koszuliński]

For the future reference:

./dev/builder/build.sh --debug-level 5 > debug.txt 2>&1