Move mpir_errflag_t to mpitypedefs.h

Having mpir_errflag_t defined in mpiimpl.h causes a problem if it needs
to be used in some other headers. This moves the definition to
mpitypedefs.h so it can be used elsewhere.
Signed-off-by: Huiwei Lu <huiweilu@mcs.anl.gov>

src/include/mpiimpl.h

@@ -720,14 +720,6 @@ extern MPID_Errhandler MPID_Errhandler_direct[];
     } while (0)
 /* ------------------------------------------------------------------------- */
 
-/* Define a typedef for the errflag value used by many internal functions.
- * If an error needs to be returned, these values can be used to signal such.
- * More details can be found further down in the code with the bitmasking logic */
-typedef enum {MPIR_ERR_NONE = MPI_SUCCESS,
-              MPIR_ERR_PROC_FAILED = MPIX_ERR_PROC_FAILED,
-              MPIR_ERR_OTHER = MPI_ERR_OTHER}
-mpir_errflag_t;
-
 /* ------------------------------------------------------------------------- */
 /* Keyvals and attributes */
 /*TKyOverview.tex

src/include/mpitypedefs.h

@@ -68,6 +68,14 @@ typedef uint16_t MPIR_Context_id_t;
 
 typedef MPIU_SIZE_T MPIU_Size_t;
 
+/* Define a typedef for the errflag value used by many internal functions.
+ * If an error needs to be returned, these values can be used to signal such.
+ * More details can be found further down in the code with the bitmasking logic */
+typedef enum {MPIR_ERR_NONE = MPI_SUCCESS,
+              MPIR_ERR_PROC_FAILED = MPIX_ERR_PROC_FAILED,
+              MPIR_ERR_OTHER = MPI_ERR_OTHER}
+mpir_errflag_t;
+
 /* Use the MPIU_PtrToXXX macros to convert pointers to and from integer types */
 
 /* The Microsoft compiler will not allow casting of different sized types