In libobjc/:
2010-10-15  Nicola Pero  <nicola.pero@meta-innovation.com>

        * objc-private/runtime.h (__objc_update_classes_with_methods): New.
        * class.c (__objc_update_classes_with_methods): New.
        (objc_getClassList): Do not lock the class lock.
        * methods.c (method_exchangeImplementations): New.
        (method_setImplementation): New.
        * objc/runtime.h (method_setImplementation): New.
        (method_exchangeImplementations): New.

From-SVN: r165525