New feature: -fdump-gimple-nodes (once more, with feeling)

[Florian Weimer]

* Andi Kleen via Gcc:

>> ***********************************This is NodeNumber0
>> (0x7f12e13b0d00) NodeNumber0
>> tree_code: function_decl
>> tree_code_class: tcc_declaration
>
> My suggestion if you go this route would be to generate
> some standard format like YAML or JSON that other tools
> can easily parse.

And C++ code that emits equivalent GENERIC or GIMPLE, perhaps?

Thanks,
Florian