[stubs] Remove OnStackArgsDescriptor and friends.

src/code-stubs.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_CODE_STUBS_H_
 #define V8_CODE_STUBS_H_
 
 #include "src/allocation.h"
 #include "src/assembler.h"
 #include "src/code-stub-assembler.h"
@@ skipping 470 matching lines @@
   Handle<Code> GenerateCode() override;       \
   DEFINE_CODE_STUB(NAME, SUPER)
 
 #define DEFINE_CALL_INTERFACE_DESCRIPTOR(NAME)                          \
  public:                                                                \
   typedef NAME##Descriptor Descriptor;                                  \
   CallInterfaceDescriptor GetCallInterfaceDescriptor() const override { \
     return Descriptor(isolate());                                       \
   }
 
-#define DEFINE_ON_STACK_CALL_INTERFACE_DESCRIPTOR(PARAMETER_COUNT)         \
- public:                                                                   \
-  CallInterfaceDescriptor GetCallInterfaceDescriptor() const override {    \
-    return OnStackArgsDescriptorBase::ForArgs(isolate(), PARAMETER_COUNT); \
-  }
-
 // There are some code stubs we just can't describe right now with a
 // CallInterfaceDescriptor. Isolate behavior for those cases with this macro.
 // An attempt to retrieve a descriptor will fail.
 #define DEFINE_NULL_CALL_INTERFACE_DESCRIPTOR()                         \
  public:                                                                \
   CallInterfaceDescriptor GetCallInterfaceDescriptor() const override { \
     UNREACHABLE();                                                      \
     return CallInterfaceDescriptor();                                   \
   }
 
@@ skipping 1605 matching lines @@
 
   DEFINE_NULL_CALL_INTERFACE_DESCRIPTOR();
   DEFINE_PLATFORM_CODE_STUB(JSEntry, PlatformCodeStub);
 };
 
 
 class RegExpExecStub: public PlatformCodeStub {
  public:
   explicit RegExpExecStub(Isolate* isolate) : PlatformCodeStub(isolate) { }
 
-  DEFINE_ON_STACK_CALL_INTERFACE_DESCRIPTOR(4);
+  DEFINE_CALL_INTERFACE_DESCRIPTOR(RegExpExec);
   DEFINE_PLATFORM_CODE_STUB(RegExpExec, PlatformCodeStub);
 };
 
 
 class RegExpConstructResultStub final : public HydrogenCodeStub {
  public:
   explicit RegExpConstructResultStub(Isolate* isolate)
       : HydrogenCodeStub(isolate) { }
 
   DEFINE_CALL_INTERFACE_DESCRIPTOR(RegExpConstructResult);
@@ skipping 977 matching lines @@
 
   DEFINE_NULL_CALL_INTERFACE_DESCRIPTOR();
   DEFINE_PLATFORM_CODE_STUB(StoreBufferOverflow, PlatformCodeStub);
 };
 
 
 class SubStringStub : public PlatformCodeStub {
  public:
   explicit SubStringStub(Isolate* isolate) : PlatformCodeStub(isolate) {}
 
-  DEFINE_ON_STACK_CALL_INTERFACE_DESCRIPTOR(3);
+  DEFINE_CALL_INTERFACE_DESCRIPTOR(SubString);
   DEFINE_PLATFORM_CODE_STUB(SubString, PlatformCodeStub);
 };
 
 class ToStringStub final : public PlatformCodeStub {
  public:
   explicit ToStringStub(Isolate* isolate) : PlatformCodeStub(isolate) {}
 
   DEFINE_CALL_INTERFACE_DESCRIPTOR(TypeConversion);
   DEFINE_PLATFORM_CODE_STUB(ToString, PlatformCodeStub);
 };
@@ skipping 12 matching lines @@
 #undef DEFINE_HYDROGEN_CODE_STUB
 #undef DEFINE_CODE_STUB
 #undef DEFINE_CODE_STUB_BASE
 
 extern Representation RepresentationFromMachineType(MachineType type);
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_CODE_STUBS_H_