[patch] Fix gdb-gdb.py for flds_bnds copy-pastes

[Jan Kratochvil <jan.kratochvil@redhat.com>]

Hi,

one such a longstanding pain - accessing pretty-printed field name does not
work:

(gdb) p *type.main_type
$2 = 
{name = 0x0,
[...]
 field[0]:
 ########
  {name = 0x2115978 "i",
[...]
   bitpos = 0},
 cplus_stuff = 0xf33b80}
(gdb) p/r *type.main_type
$3 = {code = TYPE_CODE_STRUCT, [...]
  target_type = 0x0, flds_bnds = {fields = 0x21161f0, bounds = 0x21161f0},
                     ####################################################
  [...], func_stuff = 0xf33b80}}
(gdb) p type.main_type.field[0]
                       ########
There is no member named field.
###############################
(gdb) p type.main_type.fields[0]
                       #########
There is no member named fields.
################################
(gdb) p type.main_type.flds_bnds.fields[0]
                       ###################
$3 = {loc = {bitpos = 0, physaddr = 0, [...], name = 0x2115978 "i"}

Probably clear to check it in.  I had to `print/r' to suppress gdb-gdb.py to
ba able to access GDB types fields.


Thanks,
Jan


gdb/
2012-02-09  Jan Kratochvil  <jan.kratochvil@redhat.com>

	* gdb-gdb.py (StructMainTypePrettyPrinter) <struct_field_img>: Print
	flds_bnds.fields.
	(StructMainTypePrettyPrinter) <bounds_img>: Print flds_bnds.bounds.

--- a/gdb/gdb-gdb.py
+++ b/gdb/gdb-gdb.py
@@ -166,7 +166,7 @@ class StructMainTypePrettyPrinter:
         """Return an image of the main_type field number FIELDNO.
         """
         f = self.val['flds_bnds']['fields'][fieldno]
-        label = "field[%d]:" % fieldno
+        label = "flds_bnds.fields[%d]:" % fieldno
         if f['artificial']:
             label += " (artificial)"
         fields = []
@@ -186,7 +186,7 @@ class StructMainTypePrettyPrinter:
         high = str(b['high'])
         if b['high_undefined'] != 0:
             high += " (undefined)"
-        return "bounds = {%s, %s}" % (low, high)
+        return "flds_bnds.bounds = {%s, %s}" % (low, high)
     def type_specific_img(self):
         """Return a string image of the main_type type_specific union.
         Only the relevant component of that union is printed (based on