X87: [crankshaft] Deoptimize if HHasInPrototypeChainAndBranch hits a proxy.

src/crankshaft/x87/lithium-x87.cc

Index: src/crankshaft/x87/lithium-x87.cc
diff --git a/src/crankshaft/x87/lithium-x87.cc b/src/crankshaft/x87/lithium-x87.cc
index 8dbf3f37b0995ea8af23b072cd7cd8d04211c0d7..31901e4be7f62a79ea18620af195640d0ae18b90 100644
--- a/src/crankshaft/x87/lithium-x87.cc
+++ b/src/crankshaft/x87/lithium-x87.cc
@@ -1038,7 +1038,9 @@ LInstruction* LChunkBuilder::DoHasInPrototypeChainAndBranch(
   LOperand* object = UseRegister(instr->object());
   LOperand* prototype = UseRegister(instr->prototype());
   LOperand* temp = TempRegister();
-  return new (zone()) LHasInPrototypeChainAndBranch(object, prototype, temp);
+  LHasInPrototypeChainAndBranch* result =
+      new (zone()) LHasInPrototypeChainAndBranch(object, prototype, temp);
+  return AssignEnvironment(result);
 }