mkLazyN: fix incorrect type decl for 'mergeTy64', as spotted by IBM's
BEAM checker.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@11726 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/memcheck/mc_translate.c b/memcheck/mc_translate.c
index 5e0a1a8..3f027fc 100644
--- a/memcheck/mc_translate.c
+++ b/memcheck/mc_translate.c
@@ -1571,7 +1571,7 @@
    IRAtom* here;
    IRAtom* curr;
    IRType  mergeTy;
-   IRType  mergeTy64 = True;
+   Bool    mergeTy64 = True;
 
    /* Decide on the type of the merge intermediary.  If all relevant
       args are I64, then it's I64.  In all other circumstances, use