Updated test results for record declaration and added test for record creation
Updated new expression with enclosing class field to support creation of innerclasses new A.B() which is used in record creation
Added code generation for record invariant type using the abstract syntax of a class type
Added code generation for mk_ expression for records
Added generation of constructor used for record instantiation (using the mk_ expression)
Added test for call statement
Added support for call statement
Bug fix for generation of field expressions
Added test for string type and literal
Added code generation for string type and string literals
Added test for ** expression (power)
Added code generation for star star expression (power)