Moved composite class Type to package type
Moved composite class FormStatement to package statements
Moved composite class Expr to package expressions
Moved composite class BinaryRelExpr to subpackage
Moved composite class BinaryLogicalExpr to subpackage
Moved composite class BinaryArithmeticExpr to subpackage
Moved composite class BinaryExpr to subpackage
Moved composite class LiteralExpr to subpackage
Moved composite class UnaryExpr to subpackage