['new' operator evaluation] move object construction code outside of function call parsing so it could be re-used for the 'new' operator
['new' operator evaluation] Only handle Array/String constructors in jspeFactorNewId(). Reset the CONSTRUCT flag when they are handled
['new' operator evaluation] allow using the 'new' operator on constructors called with no arguments
small fix - using 0 instead of NULL
Merge pull request #108 from ebirger/constructors_without_arguments

Support for constructors without arguments (issue #106)