Try printing array range using the name of its index type

   type Char_Table is array (Character range Character'First .. Character'Last)
     of Natural;

Trying to print the type description of this type currently yields:

   (gdb) ptype char_table
   type = array ('["00"]' .. '["ff"]') of natural

Although technically correct, it seemed more useful to print the array
range as:

   (gdb) ptype char_table
   type = array (character) of natural

This patch implements this suggestion.

gdb/ChangeLog:

        * ada-typeprint (type_is_full_subrange_of_target_type):
        New function.
        (print_range): Add parameter bounds_prefered_p.  If not set,
        try printing range types using the name of their base type.
        (print_range_type): Add parameter bounds_prefered_p.
        Use it in call to print_range.
        (print_array_type, ada_print_type): Update calls to print_range
        and print_range_type.

gdb/testsuite/ChangeLog:

        * gdb.ada/array_char_idx: New testcase.

4 files changed, 96 insertions, 0 deletions

diff --git a/gdb/testsuite/gdb.ada/array_char_idx.exp b/gdb/testsuite/gdb.ada/array_char_idx.exp
new file mode 100644
index 0000000..fca84fc
--- /dev/null
+++ b/gdb/testsuite/gdb.ada/array_char_idx.exp
@@ -0,0 +1,32 @@
+# Copyright 2014 Free Software Foundation, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+load_lib "ada.exp"
+
+if { [skip_ada_tests] } { return -1 }
+
+standard_ada_testfile foo
+
+if {[gdb_compile_ada "${srcfile}" "${binfile}" executable {debug}] != ""} {
+    return -1
+}
+
+clean_restart ${testfile}
+
+gdb_test "ptype char_table" \
+         "= array \\(character\\) of natural"
+
+gdb_test "ptype global_char_table" \
+         "= array \\(character\\) of natural"
diff --git a/gdb/testsuite/gdb.ada/array_char_idx/foo.adb b/gdb/testsuite/gdb.ada/array_char_idx/foo.adb
new file mode 100644
index 0000000..b1c73d9
--- /dev/null
+++ b/gdb/testsuite/gdb.ada/array_char_idx/foo.adb
@@ -0,0 +1,20 @@
+--  Copyright 2012-2014 Free Software Foundation, Inc.
+--
+--  This program is free software; you can redistribute it and/or modify
+--  it under the terms of the GNU General Public License as published by
+--  the Free Software Foundation; either version 3 of the License, or
+--  (at your option) any later version.
+--
+--  This program is distributed in the hope that it will be useful,
+--  but WITHOUT ANY WARRANTY; without even the implied warranty of
+--  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+--  GNU General Public License for more details.
+--
+--  You should have received a copy of the GNU General Public License
+--  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+With Pck; use Pck;
+procedure Foo is
+begin
+   Do_Nothing (Global_Char_Table'Address);
+end Foo;
diff --git a/gdb/testsuite/gdb.ada/array_char_idx/pck.adb b/gdb/testsuite/gdb.ada/array_char_idx/pck.adb
new file mode 100644
index 0000000..8e519fa
--- /dev/null
+++ b/gdb/testsuite/gdb.ada/array_char_idx/pck.adb
@@ -0,0 +1,21 @@
+--  Copyright 2012-2014 Free Software Foundation, Inc.
+--
+--  This program is free software; you can redistribute it and/or modify
+--  it under the terms of the GNU General Public License as published by
+--  the Free Software Foundation; either version 3 of the License, or
+--  (at your option) any later version.
+--
+--  This program is distributed in the hope that it will be useful,
+--  but WITHOUT ANY WARRANTY; without even the implied warranty of
+--  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+--  GNU General Public License for more details.
+--
+--  You should have received a copy of the GNU General Public License
+--  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+package body Pck is
+   procedure Do_Nothing (A : System.Address) is
+   begin
+      null;
+   end Do_Nothing;
+end Pck;
diff --git a/gdb/testsuite/gdb.ada/array_char_idx/pck.ads b/gdb/testsuite/gdb.ada/array_char_idx/pck.ads
new file mode 100644
index 0000000..ec0cd22
--- /dev/null
+++ b/gdb/testsuite/gdb.ada/array_char_idx/pck.ads
@@ -0,0 +1,23 @@
+--  Copyright 2012-2014 Free Software Foundation, Inc.
+--
+--  This program is free software; you can redistribute it and/or modify
+--  it under the terms of the GNU General Public License as published by
+--  the Free Software Foundation; either version 3 of the License, or
+--  (at your option) any later version.
+--
+--  This program is distributed in the hope that it will be useful,
+--  but WITHOUT ANY WARRANTY; without even the implied warranty of
+--  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+--  GNU General Public License for more details.
+--
+--  You should have received a copy of the GNU General Public License
+--  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+with System;
+package Pck is
+   type Char_Table is array (Character range Character'First .. Character'Last)
+      of Natural;
+   Global_Char_Table : Char_Table := (others => 0);
+
+   procedure Do_Nothing (A : System.Address);
+end Pck;