sim: cgen: namespace mode_names a bit

These are exported in the library linkage, so add a cgen_ prefix.

sim/common/ChangeLog

@@ -1,3 +1,11 @@
+2021-05-08  Mike Frysinger  <vapier@gentoo.org>
+
+	* cgen-types.h (mode_names): Rename to ...
+	(cgen_mode_names): ... this.
+	(MODE_NAME): Use cgen_mode_names.
+	* cgen-utils.c (mode_names): Rename to ...
+	(cgen_mode_names): ... this.
+
 2021-05-08  Mike Frysinger  <vapier@gentoo.org>
 
 	* cgen-ops.h (cgen_rtx_error): Declare.

sim/common/cgen-types.h

@@ -56,8 +56,8 @@ typedef enum mode_type {
 #define MAX_TARGET_MODES ((int) MODE_TARGET_MAX)
 #define MAX_MODES ((int) MODE_MAX)
 
-extern const char * const mode_names[];
-#define MODE_NAME(m) (mode_names[m])
+extern const char * const cgen_mode_names[];
+#define MODE_NAME(m) (cgen_mode_names[m])
 
 typedef void VOID;
 typedef unsigned char BI;

sim/common/cgen-utils.c

@@ -28,7 +28,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 #define SEMOPS_DEFINE_INLINE
 #include "cgen-ops.h"
 
-const char * const mode_names[] = {
+const char * const cgen_mode_names[] = {
   "VOID",
   "BI",
   "QI",