Can constants be compiled inline?

I’ve been using ‘const’ for years, but I just found out that it is executed like a normal variable at runtime. Typically constants are supposed to be ‘inlined’…

… so when you write this:

const SPEED:int = 5;
o.x += SPEED;

…you should get this in the SWF:

o.x += 5;

…but when I decompile my SWF I get this:

const SPEED:int = 5;
o.x += SPEED;

Is there a way to force the Flex compiler to **inline constants **in AS3?