Flash - Add Functions To Playerglobal.swc Or Allow Compiler To Pass Own Functions

Im adding lot of simple functions to prototypes of top level objects ( Object , Array , String ...) and have 2 questions :

Is possible to add functions to top level's classes in compile-time ?

If not , is there a way to allow this functions to compile ? I dont like to turn off strict mode

ex:

string.removeWhiteSpace();
string.sliceStr("." , "end");
textField.scrollBottom();

this return compile-time error , cause there is no such function , i have to write it in braces :

string["removeWhiteSpace"]();
string["sliceStr"]("." , "end");
textField["scrollBottom"]();

and i like to aviod it )