Adding Native Call node : a native function consists of that node, it does call into C runtime. In …

runtime/vm/flow_graph_builder.cc

Index: runtime/vm/flow_graph_builder.cc
===================================================================
--- runtime/vm/flow_graph_builder.cc	(revision 4804)
+++ runtime/vm/flow_graph_builder.cc	(working copy)
@@ -461,7 +461,8 @@
 
 
 void EffectGraphVisitor::VisitNativeBodyNode(NativeBodyNode* node) {
-  Bailout("EffectGraphVisitor::VisitNativeBodyNode");
+  NativeCallComp* native_call = new NativeCallComp(node);
+  ReturnComputation(native_call);
 }
 
 
@@ -681,6 +682,11 @@
 }
 
 
+void FlowGraphPrinter::VisitNativeCall(NativeCallComp* comp) {
+  OS::Print("NativeCall(%s)", comp->native_name().ToCString());
+}
+
+
 void FlowGraphPrinter::VisitJoinEntry(JoinEntryInstr* instr) {
   OS::Print("%2d: [join]", instr->block_number());
 }