Fix 7.8 regression: resolve_dynamic_struct: Assertion `TYPE_NFIELDS (type) > 0' (PR 17642)

https://sourceware.org/bugzilla/show_bug.cgi?id=17642

Regression since:
commit 012370f6818657a816df1463ee71ca4e4ee40b33
Author: Tom Tromey <tromey@redhat.com>
Date:   Thu May 8 11:26:44 2014 -0600
    handle VLA in a struct or union

Bugreport:
Regression with gdb scripts for Linux kernel
https://sourceware.org/ml/gdb/2014-08/msg00127.html

That big change after "else" is just reindentation.

gdb/ChangeLog
2014-12-13  Jan Kratochvil  <jan.kratochvil@redhat.com>

	PR symtab/17642
	* gdbtypes.c (resolve_dynamic_type_internal): Apply check_typedef to
	TYPE if not TYPE_CODE_TYPEDEF.

gdb/testsuite/ChangeLog
2014-12-13  Jan Kratochvil  <jan.kratochvil@redhat.com>

	PR symtab/17642
	* gdb.base/vla-stub-define.c: New file.
	* gdb.base/vla-stub.c: New file.
	* gdb.base/vla-stub.exp: New file.

1 files changed, 37 insertions, 0 deletions

diff --git a/gdb/testsuite/gdb.base/vla-stub.c b/gdb/testsuite/gdb.base/vla-stub.c
new file mode 100644
index 0000000..b7ccf041
--- /dev/null
+++ b/gdb/testsuite/gdb.base/vla-stub.c
@@ -0,0 +1,37 @@
+/* This testcase is part of GDB, the GNU debugger.
+
+   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/>.  */
+
+struct dynamic_struct;
+typedef struct dynamic_struct dynamic_struct_t;
+
+struct static_struct
+{
+  int field;
+};
+typedef struct static_struct static_struct_t;
+
+struct local_struct
+{
+  static_struct_t here;
+  dynamic_struct_t *ptr;
+} local_struct;
+
+int
+main (void)
+{
+  return 0;
+}