Merge bleeding edge up to 9192 into the GC branch.

src/arm/assembler-arm.cc

Index: src/arm/assembler-arm.cc
diff --git a/src/arm/assembler-arm.cc b/src/arm/assembler-arm.cc
index 2c28feaa646db698386b4c0eb177f9c972c39aee..329493a340db5f959ece888f4247835538eee7bc 100644
--- a/src/arm/assembler-arm.cc
+++ b/src/arm/assembler-arm.cc
@@ -693,11 +693,11 @@ void Assembler::bind(Label* L) {
 void Assembler::next(Label* L) {
   ASSERT(L->is_linked());
   int link = target_at(L->pos());
-  if (link > 0) {
-    L->link_to(link);
-  } else {
-    ASSERT(link == kEndOfChain);
+  if (link == kEndOfChain) {
     L->Unuse();
+  } else {
+    ASSERT(link >= 0);
+    L->link_to(link);
   }
 }