Fix orafce for error-reporting routines interface change

Upstream made these changes for PostgreSQL 13. In GPDB, we have these
changes as part of PostgreSQL 12 itself, as we cherry-picked the
error-reporting interface changes.

gpcontrib/orafce/sqlscan.c

-#line 1 "sqlscan.c"
+#line 2 "sqlscan.c"
 
-#line 3 "sqlscan.c"
+#line 4 "sqlscan.c"
 
 #define  YY_INT_ALIGNED short int
 
@@ -1004,7 +1004,7 @@ static unsigned char unescape_single_char(unsigned char c);
 #define _pg_mbstrlen_with_len(buf,loc) 	pg_mbstrlen_with_len(buf,loc)
 #endif
 
-#line 1007 "sqlscan.c"
+#line 1008 "sqlscan.c"
 #define YY_NO_INPUT 1
 /*
  * OK, here is a short description of lex/flex rules behavior.
@@ -1132,7 +1132,7 @@ static unsigned char unescape_single_char(unsigned char c);
  * Note that xcstart must appear before operator, as explained above!
  *  Also whitespace (comment) must appear before operator.
  */
-#line 1135 "sqlscan.c"
+#line 1136 "sqlscan.c"
 
 #define INITIAL 0
 #define xb 1
@@ -1357,7 +1357,7 @@ YY_DECL
 #line 308 "sqlscan.l"
 
 
-#line 1360 "sqlscan.c"
+#line 1361 "sqlscan.c"
 
 	while ( /*CONSTCOND*/1 )		/* loops until end-of-file is reached */
 		{
@@ -2176,7 +2176,7 @@ YY_RULE_SETUP
 #line 862 "sqlscan.l"
 YY_FATAL_ERROR( "flex scanner jammed" );
 	YY_BREAK
-#line 2179 "sqlscan.c"
+#line 2180 "sqlscan.c"
 
 	case YY_END_OF_BUFFER:
 		{
@@ -3165,7 +3165,7 @@ lexer_errposition(void)
 	pos = _pg_mbstrlen_with_len(scanbuf, orafce_sql_yylval.val.lloc) + 1;
 	/* And pass it to the ereport mechanism */
 
-#if PG_VERSION_NUM >= 130000
+#if PG_VERSION_NUM >= 120000
 
 	errposition(pos);
 

gpcontrib/orafce/sqlscan.l

@@ -880,7 +880,7 @@ lexer_errposition(void)
 	pos = _pg_mbstrlen_with_len(scanbuf, orafce_sql_yylval.val.lloc) + 1;
 	/* And pass it to the ereport mechanism */
 
-#if PG_VERSION_NUM >= 130000
+#if PG_VERSION_NUM >= 120000
 
 	errposition(pos);
 

gpcontrib/orafce/utility.c

@@ -44,7 +44,7 @@ dbms_utility_format_call_stack(char mode)
 	StringInfo   sinfo;
 
 
-#if PG_VERSION_NUM >= 130000
+#if PG_VERSION_NUM >= 120000
 
 	errstart(ERROR, TEXTDOMAIN);