Revert "Fix of warnings on aarch64 like:"

Fixed by the author in other way (char -> short)

This reverts commit 496f7090.

storage/connect/bson.cpp

@@ -769,7 +769,7 @@ bool BDOC::SerializeValue(PBVAL jvp, bool b)
   case TYPE_DBL:
     sprintf(buf, "%.*lf", jvp->Nd, *(double*)MakePtr(Base, jvp->To_Val));
     return jp->WriteStr(buf);
-  case (char)TYPE_NULL:
+  case TYPE_NULL:
     return jp->WriteStr("null");
   case TYPE_JVAL:
     return SerializeValue(MVP(jvp->To_Val));
@@ -1554,7 +1554,7 @@ PSZ BJSON::GetString(PBVAL vp, char* buff)
   case TYPE_BOOL:
     p = (PSZ)((vlp->B) ? "true" : "false");
     break;
-  case (char)TYPE_NULL:
+  case TYPE_NULL:
     p = (PSZ)"null";
     break;
   default:
@@ -1771,7 +1771,7 @@ bool BJSON::IsValueNull(PBVAL vlp)
   bool b;
 
   switch (vlp->Type) {
-  case (char)TYPE_NULL:
+  case TYPE_NULL:
     b = true;
     break;
   case TYPE_JOB:

storage/connect/bsonudf.cpp

@@ -526,7 +526,7 @@ void BJNX::SetJsonValue(PGLOBAL g, PVAL vp, PBVAL vlp)
 		case TYPE_JOB:
 			vp->SetValue_psz(GetObjectText(g, vlp, NULL));
 			break;
-		case (char)TYPE_NULL:
+		case TYPE_NULL:
 			vp->SetNull(true);
 		default:
 			vp->Reset();
@@ -1444,7 +1444,7 @@ my_bool BJNX::CompareValues(PGLOBAL g, PBVAL v1, PBVAL v2)
 				b = (v1->B == v2->B);
 
 			break;
-		case (char)TYPE_NULL:
+		case TYPE_NULL:
 			b = (v2->Type == TYPE_NULL);
 			break;
 		default: