Improving the algorithm for AbstractVariableDeclaration.
Adding Param and Variable Declaration.
Adding VariableAssignment.
Cleaning up test_GlobalExpression.
Adding VariableExpression.
Adding a comment.
Adding VariableParenthesizedExpression.
Adding VARIABLE_AS_CONTEXT_SELECTOR
Giving javascript to context from compiler.
Adding VariableValue.
Adding VARIABLE_REFERENCE.
Adding getVariablePrefix method..
Adding ContextSelector.