Title text on bytecodes that describes what each one does

Hover over a bytecode on a loaded class and the title text should be the description of the bytecode. Perhaps it could be contextual as well.

Descriptions are here: http://en.wikipedia.org/wiki/Java_bytecode_instruction_listings

Start by locating the loaded-class view and the bytecode hover/title handling in the JavaScript sources. Review the linked Java bytecode instruction listings for descriptions, then verify that hovering each bytecode shows its description and assess whether contextual wording is needed.

Written by the indexing model from the issue text.