Add support for OSR in kernel-based FlowGraphBuilder

runtime/vm/flow_graph_builder.cc

Index: runtime/vm/flow_graph_builder.cc
diff --git a/runtime/vm/flow_graph_builder.cc b/runtime/vm/flow_graph_builder.cc
index d6871ae0d0249aa4315c1f259833a014c8b3c537..a506a18001c51f2d005955b2ccdfc039afaea430 100644
--- a/runtime/vm/flow_graph_builder.cc
+++ b/runtime/vm/flow_graph_builder.cc
@@ -4637,7 +4637,7 @@ FlowGraph* FlowGraphBuilder::BuildGraph() {
 void FlowGraphBuilder::PruneUnreachable() {
   ASSERT(osr_id_ != Compiler::kNoOSRDeoptId);
   BitVector* block_marks = new(Z) BitVector(Z, last_used_block_id_ + 1);
-  bool found = graph_entry_->PruneUnreachable(this, graph_entry_, NULL, osr_id_,
+  bool found = graph_entry_->PruneUnreachable(graph_entry_, NULL, osr_id_,
                                               block_marks);
   ASSERT(found);
 }