[runtime] First step to sanitize regexp literal creation.

src/ppc/interface-descriptors-ppc.cc

Index: src/ppc/interface-descriptors-ppc.cc
diff --git a/src/ppc/interface-descriptors-ppc.cc b/src/ppc/interface-descriptors-ppc.cc
index 725d8f1986de49bf987fe6cde6d4ae0b323ceac4..66c44a4b84143af0ca3e966852769cc059625925 100644
--- a/src/ppc/interface-descriptors-ppc.cc
+++ b/src/ppc/interface-descriptors-ppc.cc
@@ -125,6 +125,13 @@ void TypeofDescriptor::InitializePlatformSpecific(
 }
 
 
+void FastCloneRegExpDescriptor::InitializePlatformSpecific(
+    CallInterfaceDescriptorData* data) {
+  Register registers[] = {r6, r5, r4, r3};
+  data->InitializePlatformSpecific(arraysize(registers), registers);
+}
+
+
 void FastCloneShallowArrayDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
   Register registers[] = {r6, r5, r4};