[Ada] Rename enumeration type

[Eric Botcazou]

PR bootstrap/69513 incidentally reports a -Wodr warning during LTO bootstrap:

../../../../../../../opt/devel/gnu/src/gcc/gcc-6.0.0-test/gcc/ada/gcc-
interface/gigi.h:345:6: warning: type ‘attr_type’ violates the C++ One 
Definition Rule [-Wodr]
 enum attr_type
      ^
./insn-attr-common.h:8:0: note: an enum with different value name is defined 
in another translation unit

Fixed thusly, tested on x86_64-suse-linux, applied on the mainline.


2016-01-28  Eric Botcazou  <ebotca...@adacore.com>

        * gcc-interface/gigi.h (enum attr_type): Rename into...
        (enum attrib_type): ...this.
        (struct attrib): Adjust.
        * gcc-interface/decl.c (prepend_one_attribute): Likewise.

-- 
Eric Botcazou
Index: gcc-interface/decl.c
===================================================================
--- gcc-interface/decl.c	(revision 232884)
+++ gcc-interface/decl.c	(working copy)
@@ -151,7 +151,7 @@ struct value_annotation_hasher : ggc_cac
 static GTY ((cache)) hash_table<value_annotation_hasher> *annotate_value_cache;
 
 static void prepend_one_attribute (struct attrib **,
-				   enum attr_type, tree, tree, Node_Id);
+				   enum attrib_type, tree, tree, Node_Id);
 static void prepend_one_attribute_pragma (struct attrib **, Node_Id);
 static void prepend_attributes (struct attrib **, Entity_Id);
 static tree elaborate_expression (Node_Id, Entity_Id, const char *, bool, bool,
@@ -6258,14 +6258,14 @@ elaborate_entity (Entity_Id gnat_entity)
 
 static void
 prepend_one_attribute (struct attrib **attr_list,
-		       enum attr_type attr_type,
+		       enum attrib_type attrib_type,
 		       tree attr_name,
 		       tree attr_args,
 		       Node_Id attr_error_point)
 {
   struct attrib * attr = (struct attrib *) xmalloc (sizeof (struct attrib));
 
-  attr->type = attr_type;
+  attr->type = attrib_type;
   attr->name = attr_name;
   attr->args = attr_args;
   attr->error_point = attr_error_point;
@@ -6281,7 +6281,7 @@ prepend_one_attribute_pragma (struct att
 {
   const Node_Id gnat_arg = Pragma_Argument_Associations (gnat_pragma);
   tree gnu_arg0 = NULL_TREE, gnu_arg1 = NULL_TREE;
-  enum attr_type etype;
+  enum attrib_type etype;
 
   /* Map the pragma at hand.  Skip if this isn't one we know how to handle.  */
   switch (Get_Pragma_Id (Chars (Pragma_Identifier (gnat_pragma))))
Index: gcc-interface/gigi.h
===================================================================
--- gcc-interface/gigi.h	(revision 232884)
+++ gcc-interface/gigi.h	(working copy)
@@ -342,7 +342,7 @@ extern bool fp_arith_may_widen;
 
 /* Data structures used to represent attributes.  */
 
-enum attr_type
+enum attrib_type
 {
   ATTR_MACHINE_ATTRIBUTE,
   ATTR_LINK_ALIAS,
@@ -356,7 +356,7 @@ enum attr_type
 struct attrib
 {
   struct attrib *next;
-  enum attr_type type;
+  enum attrib_type type;
   tree name;
   tree args;
   Node_Id error_point;