correct exception msg
add an Instruction class that all the llvm instructions inherit from (in JS), and that contains llvm's ::setDebugLoc. also add DIBuilder and friends
as much as it's useful, disable the function spew except when -d is present.
add a --basename flag so you can, say, list /path/to/module.js on the command line, and then require('module') in your javascript.  useful for frameworks.
object6.js = known failure
re-enable the gc and get it most of the way to not sucking completely.  need to remove the PageInfo* from page_data[0] and instead just index into the arena's list of pageinfos to get it.  and fix the remaining crashes in tests.
pretty up the compiler output a touch
more tests