S390: [generators] Decouple generator resume from fullcodegen.

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 63afca85ee5b45b99340bf5bd9cfc37c277a79fc..8530de5f9c6fcfdfdc26d02dc2aabad63a26868a 100644
--- a/src/s390/interface-descriptors-s390.cc
+++ b/src/s390/interface-descriptors-s390.cc
@@ -367,6 +367,15 @@ void InterpreterCEntryDescriptor::InitializePlatformSpecific(
   data->InitializePlatformSpecific(arraysize(registers), registers);
 }
 
+void ResumeGeneratorDescriptor::InitializePlatformSpecific(
+    CallInterfaceDescriptorData* data) {
+  Register registers[] = {
+      r2,  // the value to pass to the generator
+      r3,  // the JSGeneratorObject to resume
+      r4   // the resume mode (tagged)
+  };
+  data->InitializePlatformSpecific(arraysize(registers), registers);
+}
 }  // namespace internal
 }  // namespace v8