Recommit "First step in letting Crankshaft inline functions with a different context.""

src/x64/lithium-x64.cc

Index: src/x64/lithium-x64.cc
diff --git a/src/x64/lithium-x64.cc b/src/x64/lithium-x64.cc
index 7ca7c05c4c1d92ac391843c0a4875087dd0b2645..5f88c31f97cfa7d4631f3e8684c648da681a6508 100644
--- a/src/x64/lithium-x64.cc
+++ b/src/x64/lithium-x64.cc
@@ -1010,6 +1010,8 @@ LEnvironment* LChunkBuilder::CreateEnvironment(HEnvironment* hydrogen_env) {
                                           outer);
   int argument_index = 0;
   for (int i = 0; i < value_count; ++i) {
+    if (hydrogen_env->is_special_index(i)) continue;
+
     HValue* value = hydrogen_env->values()->at(i);
     LOperand* op = NULL;
     if (value->IsArgumentsObject()) {