This mostly is using diamond operator, but includes
adding missing @Override and organizing imports and
applying formatting improvements in the JDT formatter.
Change-Id: Id91cbff33b0a039cc5121945ffbc407ecba45866
As more checks have been added it has gotten a little unweildy.
The new script "do_all_code_cleanups.sh" now does most of the code
formatting checks.
Change-Id: I65fd888c88e1d7e470ed5621cee18ff3bf6680b4