Move resolving of natives to a late stage (during code emission). That eliminates unnecessary nativ…

runtime/vm/intermediate_language_arm64.cc

Index: runtime/vm/intermediate_language_arm64.cc
diff --git a/runtime/vm/intermediate_language_arm64.cc b/runtime/vm/intermediate_language_arm64.cc
index 892a2967853107eeabbaa743c06dfc9d78e9a1f3..7707e0b3d4c78515d666ce2c7c085c9bc3e71bf3 100644
--- a/runtime/vm/intermediate_language_arm64.cc
+++ b/runtime/vm/intermediate_language_arm64.cc
@@ -779,6 +779,7 @@ LocationSummary* NativeCallInstr::MakeLocationSummary(Zone* zone,
 
 
 void NativeCallInstr::EmitNativeCode(FlowGraphCompiler* compiler) {
+  SetupNative();
   const Register result = locs()->out(0).reg();
 
   // Push the result place holder initialized to NULL.
@@ -796,7 +797,7 @@ void NativeCallInstr::EmitNativeCode(FlowGraphCompiler* compiler) {
   uword entry;
   const intptr_t argc_tag = NativeArguments::ComputeArgcTag(function());
   const bool is_leaf_call =
-    (argc_tag & NativeArguments::AutoSetupScopeMask()) == 0;
+      (argc_tag & NativeArguments::AutoSetupScopeMask()) == 0;
   const StubEntry* stub_entry;
   if (link_lazily()) {
     stub_entry = StubCode::CallBootstrapCFunction_entry();