[vala] Fix handling of non-ASCII characters in comments

[Jürg Billeter <juergbi src gnome org>]

commit dae43a98ec66d6cd47b78d3f4abbc00a9c1fdab4
Author: Jürg Billeter <j bitron ch>
Date:   Sun May 31 19:03:52 2009 +0200

    Fix handling of non-ASCII characters in comments
---
 vala/valascanner.vala |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/vala/valascanner.vala b/vala/valascanner.vala
index 4177fb8..adbeb45 100644
--- a/vala/valascanner.vala
+++ b/vala/valascanner.vala
@@ -1129,9 +1129,9 @@ public class Vala.Scanner {
 		var result_builder = new StringBuilder (_comment);
 		_comment = null;
 		
-		weak string index;
+		string* index;
 		while ((index = result_builder.str.chr (-1, '\t')) != null) {
-			result_builder.erase (result_builder.str.pointer_to_offset (index), 1);
+			result_builder.erase ((long) (index - (string*) result_builder.str), 1);
 		}
 		
 		return result_builder.str;