Add a global graph entry.

runtime/vm/il_printer.cc

Index: runtime/vm/il_printer.cc
diff --git a/runtime/vm/il_printer.cc b/runtime/vm/il_printer.cc
index 05da5b61070c24ff7df25b69917754d480ed0f63..f40e8504e70b9fc08078fea79b087dfbb28b8cef 100644
--- a/runtime/vm/il_printer.cc
+++ b/runtime/vm/il_printer.cc
@@ -327,6 +327,11 @@ void FlowGraphPrinter::VisitStoreContext(StoreContextComp* comp) {
 }
 
 
+void FlowGraphPrinter::VisitGraphEntry(GraphEntryInstr* instr) {
+  OS::Print("%2d: [graph]", reverse_index(instr->postorder_number()));
+}
+
+
 void FlowGraphPrinter::VisitJoinEntry(JoinEntryInstr* instr) {
   OS::Print("%2d: [join]", reverse_index(instr->postorder_number()));
 }
@@ -361,14 +366,13 @@ void FlowGraphPrinter::VisitReturn(ReturnInstr* instr) {
 
 
 void FlowGraphPrinter::VisitThrow(ThrowInstr* instr) {
-  OS::Print("Throw(");
+  OS::Print("    throw ");
   instr->exception()->Accept(this);
-  OS::Print(")");
 }
 
 
 void FlowGraphPrinter::VisitReThrow(ReThrowInstr* instr) {
-  OS::Print("ReThrow(");
+  OS::Print("    rethrow (");
   instr->exception()->Accept(this);
   OS::Print(", ");
   instr->stack_trace()->Accept(this);
@@ -379,7 +383,7 @@ void FlowGraphPrinter::VisitReThrow(ReThrowInstr* instr) {
 void FlowGraphPrinter::VisitBranch(BranchInstr* instr) {
   OS::Print("    if ");
   instr->value()->Accept(this);
-  OS::Print(" goto(%d, %d)",
+  OS::Print(" goto (%d, %d)",
             reverse_index(instr->true_successor()->postorder_number()),
             reverse_index(instr->false_successor()->postorder_number()));
 }