Overview
This fork adds instrumentation via command line to Google Closure Compiler for JavaScript. While Closure supports instrumentation internally, this is not possible to use without changes to the compiler. I found it to be a pity Closure does not offer an easier interface for instrumentation. This would have helped me in playing around with programs faster, others may find it useful.
The new option is '--instrumentation_template', details on how to instrument are available here. Sample code is available in the instrumentation-sample directory.