Wrapped fields of Arguments

Signed-off-by: Stefan Marr <git@stefan-marr.de>
Made parameter final

Signed-off-by: Stefan Marr <git@stefan-marr.de>
Added support for #ifTrue: etc with non-block arguments

Not all #ifTrue:, #ifFalse:, etc have a block as argument, it can also be an expression that is evaluated first.

Signed-off-by: Stefan Marr <git@stefan-marr.de>