Revert "Add DoubleTestOp instruction"

runtime/vm/constant_propagator.cc

Index: runtime/vm/constant_propagator.cc
diff --git a/runtime/vm/constant_propagator.cc b/runtime/vm/constant_propagator.cc
index 06f8dd5ff2760de8f62cb99c60df3985ae0cd4e6..1f5290dd6664924fac0670b65978b29a0766d424 100644
--- a/runtime/vm/constant_propagator.cc
+++ b/runtime/vm/constant_propagator.cc
@@ -1168,27 +1168,6 @@ void ConstantPropagator::VisitBinaryDoubleOp(
 }
 
 
-void ConstantPropagator::VisitDoubleTestOp(DoubleTestOpInstr* instr) {
-  const Object& value = instr->value()->definition()->constant_value();
-  if (value.IsInteger()) {
-    SetValue(instr, Bool::False());
-  } else if (IsIntegerOrDouble(value)) {
-    switch (instr->op_kind()) {
-      case MethodRecognizer::kDouble_getIsNaN:
-        SetValue(instr, Bool::Get(isnan(ToDouble(value))));
-        break;
-      case MethodRecognizer::kDouble_getIsInfinite:
-        SetValue(instr, Bool::Get(isinf(ToDouble(value))));
-        break;
-      default:
-        UNREACHABLE();
-    }
-  } else {
-    SetValue(instr, non_constant_);
-  }
-}
-
-
 void ConstantPropagator::VisitBinaryFloat32x4Op(
     BinaryFloat32x4OpInstr* instr) {
   const Object& left = instr->left()->definition()->constant_value();