First round of Char/HChar fixups for coregrind and memcheck.
Little bit of ripple in tools, too.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13074 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/helgrind/hg_errors.c b/helgrind/hg_errors.c
index 527671c..bcf89c3 100644
--- a/helgrind/hg_errors.c
+++ b/helgrind/hg_errors.c
@@ -1333,7 +1333,7 @@
    } /* switch (VG_(get_error_kind)(err)) */
 }
 
-HChar* HG_(get_error_name) ( Error* err )
+const HChar* HG_(get_error_name) ( Error* err )
 {
    switch (VG_(get_error_kind)(err)) {
       case XE_Race:           return "Race";