ECPG: Fix searching for quoted cursor names case-sensitively.

Patch by Böszörményi Zoltán <zb@cybertec.at>

src/interfaces/ecpg/preproc/ecpg.addons

@@ -290,7 +290,7 @@ ECPG: DeclareCursorStmtDECLAREcursor_namecursor_optionsCURSORopt_holdFORSelectSt
 		struct cursor *ptr, *this;
 		char *cursor_marker = $2[0] == ':' ? mm_strdup("$0") : mm_strdup($2);
 		char *comment, *c1, *c2;
-		int (* strcmp_fn)(const char *, const char *) = ($2[0] == ':' ? strcmp : pg_strcasecmp);
+		int (* strcmp_fn)(const char *, const char *) = (($2[0] == ':' || $2[0] == '"') ? strcmp : pg_strcasecmp);
 
 		for (ptr = cur; ptr != NULL; ptr = ptr->next)
 		{

src/interfaces/ecpg/preproc/ecpg.header

@@ -492,7 +492,7 @@ add_additional_variables(char *name, bool insert)
 {
 	struct cursor *ptr;
 	struct arguments *p;
-	int (* strcmp_fn)(const char *, const char *) = (name[0] == ':' ? strcmp : pg_strcasecmp);
+	int (* strcmp_fn)(const char *, const char *) = ((name[0] == ':' || name[0] == '"') ? strcmp : pg_strcasecmp);
 
 	for (ptr = cur; ptr != NULL; ptr=ptr->next)
 	{

src/interfaces/ecpg/preproc/ecpg.trailer

@@ -291,7 +291,7 @@ ECPGCursorStmt:  DECLARE cursor_name cursor_options CURSOR opt_hold FOR prepared
 		{
 			struct cursor *ptr, *this;
 			char *cursor_marker = $2[0] == ':' ? mm_strdup("$0") : mm_strdup($2);
-			int (* strcmp_fn)(const char *, const char *) = ($2[0] == ':' ? strcmp : pg_strcasecmp);
+			int (* strcmp_fn)(const char *, const char *) = (($2[0] == ':' || $2[0] == '"') ? strcmp : pg_strcasecmp);
 			struct variable *thisquery = (struct variable *)mm_alloc(sizeof(struct variable));
 			const char *con = connection ? connection : "NULL";
 			char *comment;