Move enum idt to the single translation unit that actually requires it

Author: tautschnig

src/util/irep_ids.cpp

@@ -27,6 +27,14 @@ const char *irep_ids_table[]=
 
 #ifdef USE_DSTRING
 
+enum class idt:unsigned
+{
+#define IREP_ID_ONE(the_id) id_##the_id,
+#define IREP_ID_TWO(the_id, str) id_##the_id,
+
+#include "irep_ids.def"
+};
+
 #define IREP_ID_ONE(the_id)                                                    \
   const dstringt ID_##the_id=dstringt::make_from_table_index(                  \
       static_cast<unsigned>(idt::id_##the_id));

src/util/irep_ids.h

@@ -33,14 +33,6 @@ Author: Reuben Thomas, [email protected]
 /// into a const extern irep_idt with the variable name `ID_param` and the
 /// string value `"contents"`.
 
-enum class idt:unsigned
-{
-#define IREP_ID_ONE(the_id) id_##the_id,
-#define IREP_ID_TWO(the_id, str) id_##the_id,
-
-#include "irep_ids.def"
-};
-
 #ifdef USE_DSTRING
 
 #define IREP_ID_ONE(the_id) extern const dstringt ID_##the_id;