Revert r7665.

src/x64/lithium-x64.cc

Index: src/x64/lithium-x64.cc
===================================================================
--- src/x64/lithium-x64.cc	(revision 7669)
+++ src/x64/lithium-x64.cc	(working copy)
@@ -133,6 +133,7 @@
 
 
 void LLabel::PrintDataTo(StringStream* stream) {
+  LGap::PrintDataTo(stream);
   LLabel* rep = replacement();
   if (rep != NULL) {
     stream->Add(" Dead block replaced with B%d", rep->block_id());
@@ -146,6 +147,7 @@
       return false;
     }
   }
+
   return true;
 }
 
@@ -385,6 +387,7 @@
     if (last_instr->IsGoto()) {
       LGoto* goto_instr = LGoto::cast(last_instr);
       if (!goto_instr->include_stack_check() &&
+          label->IsRedundant() &&
           !label->is_loop_header()) {
         bool can_eliminate = true;
         for (int i = first + 1; i < last && can_eliminate; ++i) {