Objc - merged classname hashtable patch from apple/trunk

["Nicola Pero" <nicola dot pero at meta-innovation dot com>]

This merge from FSF apple/trunk provides a (small) speedup for compiling Objective-C.

Committed to trunk (preapproved by Mike).

Thanks

2010-10-20  Nicola Pero  <nicola.pero@meta-innovation.com>

        Merge from 'apple/trunk' branch on FSF servers.  Obvious updates
        to gcc_alloc_xxx calls in hash_init and hash_class_name_enter to
        get it to compile in the current trunk.

        2006-01-27 Fariborz Jahanian <fjahanian@apple.com>

        Radar 4345837
        * objc/objc-act.c (hash_class_name_enter): New.
        (hash_class_name_lookup): New.
        (objc_declare_alias): Enter alias name into hash table.
        (objc_declare_class): Enter class name into hash table.
        (objc_is_class_name): Do a hash look up of class name.
        (hash_init): Initialize the two new hash tables.
        * objc-act.h: Added cls_name_hash_list and als_name_hash_list
        declarations, removed class_chain and alias_chain.

Attachment: patch.txt
Description: Text document