[stubs] Unify the type conversion call interface descriptors.

src/mips/interface-descriptors-mips.cc

Index: src/mips/interface-descriptors-mips.cc
diff --git a/src/mips/interface-descriptors-mips.cc b/src/mips/interface-descriptors-mips.cc
index f5592c8517c79c5879f96951637f9b05064d2aa8..44f710a6a7da3ccd465ce9107c01996faaad8c6e 100644
--- a/src/mips/interface-descriptors-mips.cc
+++ b/src/mips/interface-descriptors-mips.cc
@@ -109,35 +109,8 @@ void FastNewStrictArgumentsDescriptor::InitializePlatformSpecific(
 }
 
 
-void ToNumberDescriptor::InitializePlatformSpecific(
-    CallInterfaceDescriptorData* data) {
-  Register registers[] = {a0};
-  data->InitializePlatformSpecific(arraysize(registers), registers, NULL);
-}
-
-
-// static
-const Register ToLengthDescriptor::ReceiverRegister() { return a0; }
-
-
-// static
-const Register ToStringDescriptor::ReceiverRegister() { return a0; }
-
-
-// static
-const Register ToNameDescriptor::ReceiverRegister() { return a0; }
-
-
 // static
-const Register ToObjectDescriptor::ReceiverRegister() { return a0; }
-
-
-void NumberToStringDescriptor::InitializePlatformSpecific(
-    CallInterfaceDescriptorData* data) {
-  Register registers[] = {a0};
-  data->InitializePlatformSpecific(arraysize(registers), registers, NULL);
-}
-
+const Register TypeConversionDescriptor::ArgumentRegister() { return a0; }
 
 void TypeofDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
@@ -318,13 +291,6 @@ void CompareDescriptor::InitializePlatformSpecific(
 }
 
 
-void ToBooleanDescriptor::InitializePlatformSpecific(
-    CallInterfaceDescriptorData* data) {
-  Register registers[] = {a0};
-  data->InitializePlatformSpecific(arraysize(registers), registers, NULL);
-}
-
-
 void BinaryOpDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
   Register registers[] = {a1, a0};