msi: Use %define api.pure instead of %pure-parser.

dlls/msi/cond.y

@@ -114,7 +114,7 @@ static void value_free( struct value val )
 
 %lex-param { COND_input *info }
 %parse-param { COND_input *info }
-%pure-parser
+%define api.pure
 
 %union
 {

dlls/msi/sql.y

@@ -58,7 +58,7 @@ static struct expr * EXPR_wildcard( void *info );
 
 %lex-param { SQL_input *info }
 %parse-param { SQL_input *info }
-%pure-parser
+%define api.pure
 
 %union
 {