Fix a few Char/HChar mixups in callgrind.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13069 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/callgrind/debug.c b/callgrind/debug.c
index 7f5a8e7..cf795a4 100644
--- a/callgrind/debug.c
+++ b/callgrind/debug.c
@@ -377,7 +377,7 @@
     Char fn_buf[FN_NAME_LEN];
     const UChar* obj_name;
     DebugInfo* di;
-    int ln, i=0, opos=0;
+    UInt ln, i=0, opos=0;
 	
     if (addr == 0) {
 	VG_(printf)("%08lx", addr);