pass codesniffer on tests/

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
Merge "pass codesniffer on tests/"