More Char/HChar fixes and constification.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13088 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/helgrind/hg_errors.h b/helgrind/hg_errors.h
index c391582..919ff52 100644
--- a/helgrind/hg_errors.h
+++ b/helgrind/hg_errors.h
@@ -45,7 +45,7 @@
 Bool  HG_(error_matches_suppression) ( Error* err, Supp* su );
 const HChar* HG_(get_error_name) ( Error* err );
 Bool  HG_(get_extra_suppression_info) ( Error* err,
-                                        /*OUT*/Char* buf, Int nBuf );
+                                        /*OUT*/HChar* buf, Int nBuf );
 
 /* Functions for recording various kinds of errors. */
 void HG_(record_error_Race) ( Thread* thr,