const-fy regcache::m_readonly_p

gdb:

2017-11-02  Yao Qi  <yao.qi@linaro.org>

	* regcache.h (regcache) <m_readonly_p>: Change it to const bool.

1 files changed, 1 insertions, 1 deletions

diff --git a/gdb/regcache.h b/gdb/regcache.h
index 7eb56a7..05d96b3 100644
--- a/gdb/regcache.h
+++ b/gdb/regcache.h
@@ -378,7 +378,7 @@ private:
      cache can only be updated via the methods regcache_dup() and
      regcache_cpy().  The actual contents are determined by the
      reggroup_save and reggroup_restore methods.  */
-  bool m_readonly_p;
+  const bool m_readonly_p;
   /* If this is a read-write cache, which thread's registers is
      it connected to?  */
   ptid_t m_ptid;