Unbox/Box Float64x2 and inline typed array loads and stores

runtime/vm/flow_graph_type_propagator.cc

Index: runtime/vm/flow_graph_type_propagator.cc
diff --git a/runtime/vm/flow_graph_type_propagator.cc b/runtime/vm/flow_graph_type_propagator.cc
index 204277191d6d34dba415b93428ecf1458cfe5682..b5d6971f5d5d63ea37d7cc527418da3a547fa78b 100644
--- a/runtime/vm/flow_graph_type_propagator.cc
+++ b/runtime/vm/flow_graph_type_propagator.cc
@@ -1206,6 +1206,16 @@ CompileType BoxFloat32x4Instr::ComputeType() const {
 }
 
 
+CompileType UnboxFloat64x2Instr::ComputeType() const {
+  return CompileType::FromCid(kFloat64x2Cid);
+}
+
+
+CompileType BoxFloat64x2Instr::ComputeType() const {
+  return CompileType::FromCid(kFloat64x2Cid);
+}
+
+
 CompileType UnboxInt32x4Instr::ComputeType() const {
   return CompileType::FromCid(kInt32x4Cid);
 }