[stubs] Unify the type conversion call interface descriptors.

src/ia32/interface-descriptors-ia32.cc

Index: src/ia32/interface-descriptors-ia32.cc
diff --git a/src/ia32/interface-descriptors-ia32.cc b/src/ia32/interface-descriptors-ia32.cc
index 96a029cbc8e996a8c5b50aca1a979ea04569f532..ff734d694785052ae22796870d7fb4ce8b7a73d0 100644
--- a/src/ia32/interface-descriptors-ia32.cc
+++ b/src/ia32/interface-descriptors-ia32.cc
@@ -114,36 +114,8 @@ void FastNewStrictArgumentsDescriptor::InitializePlatformSpecific(
 }
 
 
-void ToNumberDescriptor::InitializePlatformSpecific(
-    CallInterfaceDescriptorData* data) {
-  // ToNumberStub invokes a function, and therefore needs a context.
-  Register registers[] = {eax};
-  data->InitializePlatformSpecific(arraysize(registers), registers, NULL);
-}
-
-
-// static
-const Register ToLengthDescriptor::ReceiverRegister() { return eax; }
-
-
-// static
-const Register ToStringDescriptor::ReceiverRegister() { return eax; }
-
-
-// static
-const Register ToNameDescriptor::ReceiverRegister() { return eax; }
-
-
 // static
-const Register ToObjectDescriptor::ReceiverRegister() { return eax; }
-
-
-void NumberToStringDescriptor::InitializePlatformSpecific(
-    CallInterfaceDescriptorData* data) {
-  Register registers[] = {eax};
-  data->InitializePlatformSpecific(arraysize(registers), registers, NULL);
-}
-
+const Register TypeConversionDescriptor::ArgumentRegister() { return eax; }
 
 void TypeofDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
@@ -324,13 +296,6 @@ void CompareDescriptor::InitializePlatformSpecific(
 }
 
 
-void ToBooleanDescriptor::InitializePlatformSpecific(
-    CallInterfaceDescriptorData* data) {
-  Register registers[] = {eax};
-  data->InitializePlatformSpecific(arraysize(registers), registers, NULL);
-}
-
-
 void BinaryOpDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
   Register registers[] = {edx, eax};