Revert "Introduce API to temporarily interrupt long running JavaScript code."

src/hydrogen-instructions.h

Index: src/hydrogen-instructions.h
diff --git a/src/hydrogen-instructions.h b/src/hydrogen-instructions.h
index 00b18bdf73c6c66f48cbc92ec604a1d7feb25f19..fde3abcbe8d3567814a218ff515ab6c43940a9a6 100644
--- a/src/hydrogen-instructions.h
+++ b/src/hydrogen-instructions.h
@@ -1245,7 +1245,7 @@ class HInstruction : public HValue {
   virtual void Verify() V8_OVERRIDE;
 #endif
 
-  virtual bool HasStackCheck() { return false; }
+  virtual bool IsCall() { return false; }
 
   DECLARE_ABSTRACT_INSTRUCTION(Instruction)
 
@@ -2243,6 +2243,8 @@ class HCall : public HTemplateInstruction<V> {
     return -argument_count();
   }
 
+  virtual bool IsCall() V8_FINAL V8_OVERRIDE { return true; }
+
  private:
   int argument_count_;
 };
@@ -2314,12 +2316,6 @@ class HInvokeFunction V8_FINAL : public HBinaryCall {
   Handle<JSFunction> known_function() { return known_function_; }
   int formal_parameter_count() const { return formal_parameter_count_; }
 
-  virtual bool HasStackCheck() V8_FINAL V8_OVERRIDE {
-    return !known_function().is_null() &&
-        (known_function()->code()->kind() == Code::FUNCTION ||
-         known_function()->code()->kind() == Code::OPTIMIZED_FUNCTION);
-  }
-
   DECLARE_CONCRETE_INSTRUCTION(InvokeFunction)
 
  private:
@@ -2352,11 +2348,6 @@ class HCallConstantFunction V8_FINAL : public HCall<0> {
     return Representation::None();
   }
 
-  virtual bool HasStackCheck() V8_FINAL V8_OVERRIDE {
-    return (function()->code()->kind() == Code::FUNCTION ||
-        function()->code()->kind() == Code::OPTIMIZED_FUNCTION);
-  }
-
   DECLARE_CONCRETE_INSTRUCTION(CallConstantFunction)
 
  private:
@@ -2474,11 +2465,6 @@ class HCallKnownGlobal V8_FINAL : public HCall<0> {
     return Representation::None();
   }
 
-  virtual bool HasStackCheck() V8_FINAL V8_OVERRIDE {
-    return (target()->code()->kind() == Code::FUNCTION ||
-        target()->code()->kind() == Code::OPTIMIZED_FUNCTION);
-  }
-
   DECLARE_CONCRETE_INSTRUCTION(CallKnownGlobal)
 
  private: