Do not embed is_auto_setup_scope into the compilation of native calls.

runtime/vm/intermediate_language_x64.cc

Index: runtime/vm/intermediate_language_x64.cc
diff --git a/runtime/vm/intermediate_language_x64.cc b/runtime/vm/intermediate_language_x64.cc
index 5dd33d066c84c2485e97b4d040a81be65710d2b0..55f64e92449612c9454afe60c10f167fd61098dc 100644
--- a/runtime/vm/intermediate_language_x64.cc
+++ b/runtime/vm/intermediate_language_x64.cc
@@ -812,15 +812,19 @@ void NativeCallInstr::EmitNativeCode(FlowGraphCompiler* compiler) {
   __ LoadImmediate(R10, Immediate(argc_tag));
   const StubEntry* stub_entry;
   if (link_lazily()) {
-    stub_entry = StubCode::CallBootstrapCFunction_entry();
+    stub_entry = StubCode::CallBootstrapNative_entry();
     ExternalLabel label(NativeEntry::LinkNativeCallEntry());
     __ LoadNativeEntry(RBX, &label, kPatchable);
     compiler->GeneratePatchableCall(token_pos(), *stub_entry,
                                     RawPcDescriptors::kOther, locs());
   } else {
-    stub_entry = (is_bootstrap_native())
-                     ? StubCode::CallBootstrapCFunction_entry()
-                     : StubCode::CallNativeCFunction_entry();
+    if (is_bootstrap_native()) {
+      stub_entry = StubCode::CallBootstrapNative_entry();
+    } else if (is_auto_scope()) {
+      stub_entry = StubCode::CallAutoScopeNative_entry();
+    } else {
+      stub_entry = StubCode::CallNoScopeNative_entry();
+    }
     const ExternalLabel label(reinterpret_cast<uword>(native_c_function()));
     __ LoadNativeEntry(RBX, &label, kNotPatchable);
     compiler->GenerateCall(token_pos(), *stub_entry, RawPcDescriptors::kOther,