(1.1b/x86-win32) C++ bug in taking address of dllimported variable

[Mumit Khan]

EGCS 1.1 C++ x86-*win32 front-end chokes on the following code (defining
AVOID_BUG works around it, but that's awkward for lot of existing code):
  
    struct 
    #ifdef AVOID_BUG
    __attribute__((dllimport)) 
    #endif
    B { };

    __attribute__((dllimport)) B p;

    void
    foo ()
    {
      B* localp = &p;		// <<<<<< DIES HERE.
    }

The call-tree leading up to the crash is the following:
  yyparse
    build_x_unary_op
      build_new_op
        lookup_function_nonclass
          lookup_arg_dependent
	    arg_assoc_args
	      arg_assoc		<<< BEGINNING OF TROUBLE (TREE_TYPE)
		arg_assoc_type
		  arg_assoc_class
		    decl_namespace <<<< CRASH

The trouble is that TREE_TYPE in ``arg_assoc' is not returning what's 
expected, and eventually we get a crash.

NOTE: This does not happen with development snapshots, and I'd like
to of course figure what changed to fix this and hopefully get that
in the release branch.

I've attached the following:
  c++dllimp.ii 		-- preprocessed
  gdb.run 		-- gdb trace using egcs-1.1 with lots of detail
  gdb.run-new		-- gdb trace using recent development snapshot
			   that shows the different return value of
			   TREE_TYPE (n).

Regards,
Mumit