Fix almost all occurences of the following sniffs:
Generic.CodeAnalysis.UselessOverridingMethod.Found
Generic.Formatting.NoSpaceAfterCast.SpaceFound
Generic.Functions.FunctionCallArgumentSpacing.SpaceBeforeComma
Generic.Functions.OpeningFunctionBraceKernighanRitchie.BraceOnNewLine
Generic.PHP.LowerCaseConstant.Found
PSR2.Classes.PropertyDeclaration.ScopeMissing
PSR2.Files.EndFileNewline.TooMany
PSR2.Methods.MethodDeclaration.StaticBeforeVisibility
Change-Id: I96aacef5bafe5a2bca659744fba1380999cfc37d
All tests based on APITestCase can be slow. I've also seen more than one
Jenkins failure due to GlobalTest::testMerge timing out.
Also, added a meta-test on APITestCase to make sure that all its
subclasses are marked with @group medium or @group large, to prevent new
tests from re-causing the bug.
Change-Id: I48630736a3d06574876fd1fa3d90899cfbc48012