2009-06-23 Sami Wagiaalla <swagiaal@redhat.com>

2009-06-23  Sami Wagiaalla  <swagiaal@redhat.com>

       * dwarf2read.c (process_die): Handle import statements
       (DW_TAG_imported_declaration, case DW_TAG_imported_module)
       (read_import_statement): New.
       (read_func_scope): Update using_directives to point to current context
       (read_lexical_block_scope): Ditto.
       * cp-support.h: Added prototype for cp_add_using.
       * cp-namespace.c: Removed local context_stack.
       (cp_initialize_namespace): Deleted.
       (cp_finalize_namespace): Deleted.
       (cp_add_using_directive): Use using_directives instead of using_list.
       (cp_add_using): No longer static.
       * buildsym.h: Created global using_direct variable.
       Created using_direct variable in context_stack.
       * buildsym.c (finish_block): Set using directives for the block under
       construction.
       (start_symtab): Removed call to cp_initialize_namespace().
       (end_symtab): Removed call to cp_finalize_namespace().
       (push_context): Save and reset using_directives.
       * block.c (block_using): Return using directives for given
       block instead of static block.

2009-06-23  Sami Wagiaalla  <swagiaal@redhat.com>

       * gdb.cp/namespace-using.exp: New test.
       * gdb.cp/namespace-using.cc: New test.