PPC/s390: [builtins] Start refactoring the Apply builtin.

src/s390/interface-descriptors-s390.cc

Index: src/s390/interface-descriptors-s390.cc
diff --git a/src/s390/interface-descriptors-s390.cc b/src/s390/interface-descriptors-s390.cc
index 028870a5788a52eea2ac01ab52e6e108b1429995..0b07c11c7753007e1b3801cb3a61400bb59833f9 100644
--- a/src/s390/interface-descriptors-s390.cc
+++ b/src/s390/interface-descriptors-s390.cc
@@ -145,6 +145,16 @@ void CallTrampolineDescriptor::InitializePlatformSpecific(
   data->InitializePlatformSpecific(arraysize(registers), registers);
 }
 
+void CallVarargsDescriptor::InitializePlatformSpecific(
+    CallInterfaceDescriptorData* data) {
+  // r2 : number of arguments (on the stack, not including receiver)
+  // r3 : the target to call
+  // r4 : arguments list (FixedArray)
+  // r6 : arguments list length (untagged)
+  Register registers[] = {r3, r2, r4, r6};
+  data->InitializePlatformSpecific(arraysize(registers), registers);
+}
+
 void CallForwardVarargsDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
   // r2 : number of arguments
@@ -154,6 +164,25 @@ void CallForwardVarargsDescriptor::InitializePlatformSpecific(
   data->InitializePlatformSpecific(arraysize(registers), registers);
 }
 
+void CallWithArrayLikeDescriptor::InitializePlatformSpecific(
+    CallInterfaceDescriptorData* data) {
+  // r3 : the target to call
+  // r4 : the arguments list
+  Register registers[] = {r3, r4};
+  data->InitializePlatformSpecific(arraysize(registers), registers);
+}
+
+void ConstructVarargsDescriptor::InitializePlatformSpecific(
+    CallInterfaceDescriptorData* data) {
+  // r2 : number of arguments (on the stack, not including receiver)
+  // r3 : the target to call
+  // r5 : the new target
+  // r4 : arguments list (FixedArray)
+  // r6 : arguments list length (untagged)
+  Register registers[] = {r3, r5, r2, r4, r6};
+  data->InitializePlatformSpecific(arraysize(registers), registers);
+}
+
 void ConstructForwardVarargsDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
   // r2 : number of arguments
@@ -164,6 +193,15 @@ void ConstructForwardVarargsDescriptor::InitializePlatformSpecific(
   data->InitializePlatformSpecific(arraysize(registers), registers);
 }
 
+void ConstructWithArrayLikeDescriptor::InitializePlatformSpecific(
+    CallInterfaceDescriptorData* data) {
+  // r3 : the target to call
+  // r5 : the new target
+  // r4 : the arguments list
+  Register registers[] = {r3, r5, r4};
+  data->InitializePlatformSpecific(arraysize(registers), registers);
+}
+
 void ConstructStubDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
   // r2 : number of arguments