VM-codegen: Add IL instruction to check if a Smi is in a constant range

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 fe3f74222035aec52e969c3e02d3af13226a1ca3..b7b837ab29975f0bbfb7931b146bad45f2226875 100644
--- a/runtime/vm/flow_graph_type_propagator.cc
+++ b/runtime/vm/flow_graph_type_propagator.cc
@@ -968,6 +968,11 @@ CompileType TestCidsInstr::ComputeType() const {
 }
 
 
+CompileType SmiRangeComparisonInstr::ComputeType() const {
+  return CompileType::Bool();
+}
+
+
 CompileType EqualityCompareInstr::ComputeType() const {
   // Used for numeric comparisons only.
   return CompileType::Bool();