Revert "Add DoubleTestOp instruction"

runtime/vm/intermediate_language.h

Index: runtime/vm/intermediate_language.h
diff --git a/runtime/vm/intermediate_language.h b/runtime/vm/intermediate_language.h
index aac9677fb84b432f1d0997b86e946a7ae23ee792..1fe4377941f990987729271f0acee23ef76ad06c 100644
--- a/runtime/vm/intermediate_language.h
+++ b/runtime/vm/intermediate_language.h
@@ -497,7 +497,6 @@ class EmbeddedArray<T, 0> {
   M(UnboxedConstant)                                                           \
   M(CheckEitherNonSmi)                                                         \
   M(BinaryDoubleOp)                                                            \
-  M(DoubleTestOp)                                                             \
   M(MathUnary)                                                                 \
   M(MathMinMax)                                                                \
   M(Box)                                                                       \
@@ -5344,54 +5343,6 @@ class BinaryDoubleOpInstr : public TemplateDefinition<2, NoThrow, Pure> {
 };
 
 
-class DoubleTestOpInstr : public TemplateDefinition<1, NoThrow, Pure> {
- public:
-  DoubleTestOpInstr(MethodRecognizer::Kind op_kind,
-                    Value* d,
-                    intptr_t deopt_id,
-                    TokenPosition token_pos)
-      : TemplateDefinition(deopt_id),
-        op_kind_(op_kind),
-        token_pos_(token_pos) {
-    SetInputAt(0, d);
-  }
-
-  Value* value() const { return inputs_[0]; }
-
-  MethodRecognizer::Kind op_kind() const { return op_kind_; }
-
-  virtual TokenPosition token_pos() const { return token_pos_; }
-
-  virtual bool CanDeoptimize() const { return false; }
-
-  virtual Representation RequiredInputRepresentation(intptr_t idx) const {
-    ASSERT(idx == 0);
-    return kUnboxedDouble;
-  }
-
-  virtual intptr_t DeoptimizationTarget() const {
-    // Direct access since this instruction cannot deoptimize, and the deopt-id
-    // was inherited from another instruction that could deoptimize.
-    return GetDeoptId();
-  }
-
-  PRINT_OPERANDS_TO_SUPPORT
-
-  DECLARE_INSTRUCTION(DoubleTestOp)
-  virtual CompileType ComputeType() const;
-
-  virtual Definition* Canonicalize(FlowGraph* flow_graph);
-
-  virtual bool AttributesEqual(Instruction* other) const { return true; }
-
- private:
-  const MethodRecognizer::Kind op_kind_;
-  const TokenPosition token_pos_;
-
-  DISALLOW_COPY_AND_ASSIGN(DoubleTestOpInstr);
-};
-
-
 class BinaryFloat32x4OpInstr : public TemplateDefinition<2, NoThrow, Pure> {
  public:
   BinaryFloat32x4OpInstr(Token::Kind op_kind,