Fix branch hint in select.

R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/703633003

Cr-Commit-Position: refs/heads/master@{#25117}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25117 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/compiler/select-lowering.cc

@@ -32,7 +32,7 @@ Reduction SelectLowering::Reduce(Node* node) {
   auto i = merges_.find(cond);
   if (i == merges_.end()) {
     // Create a new diamond for this condition and remember its merge node.
-    Diamond d(graph(), common(), cond);
+    Diamond d(graph(), common(), cond, p.hint());
     i = merges_.insert(std::make_pair(cond, d.merge)).first;
   }