Dump information about each compilation and graph containing more context for debugging and diagnosing. Some contextual properties that could be dumped are:

- For each compilation: JVM arguments, date and time, build information, machine characteristics.

- For each graph: C2 call stack.

Dumping the C2 call stack can be particularly useful when IGV is driven interactively via a debugger. The name of dumped graphs (currently "Debug") could be replaced with the source location at which the graph has been dumped (e.g. "memnode.cpp:3326").