Use a different map to distinguish eval contexts

src/arm64/interface-descriptors-arm64.cc

Index: src/arm64/interface-descriptors-arm64.cc
diff --git a/src/arm64/interface-descriptors-arm64.cc b/src/arm64/interface-descriptors-arm64.cc
index 30717916c34bd6a27ff9787ba9064294e5bc2cf4..86d614c9e6231ad3ebc1bb8194708aeacd85acb5 100644
--- a/src/arm64/interface-descriptors-arm64.cc
+++ b/src/arm64/interface-descriptors-arm64.cc
@@ -27,6 +27,9 @@ const Register FastNewFunctionContextDescriptor::FunctionRegister() {
 }
 const Register FastNewFunctionContextDescriptor::SlotsRegister() { return x0; }
 
+const Register FastNewEvalContextDescriptor::FunctionRegister() { return x1; }
+const Register FastNewEvalContextDescriptor::SlotsRegister() { return x0; }
+
 const Register LoadDescriptor::ReceiverRegister() { return x1; }
 const Register LoadDescriptor::NameRegister() { return x2; }
 const Register LoadDescriptor::SlotRegister() { return x0; }