X87: fix performance regression on intel call api stubs

src/x87/interface-descriptors-x87.cc

Index: src/x87/interface-descriptors-x87.cc
diff --git a/src/x87/interface-descriptors-x87.cc b/src/x87/interface-descriptors-x87.cc
index 9ab630f85fe093ea3f4b49e3f26c53f9c228a07f..45a12794408abaa2514fbfa848820e7d2a7f5554 100644
--- a/src/x87/interface-descriptors-x87.cc
+++ b/src/x87/interface-descriptors-x87.cc
@@ -306,11 +306,11 @@ void ArgumentAdaptorDescriptor::Initialize(CallInterfaceDescriptorData* data) {
 void ApiFunctionDescriptor::Initialize(CallInterfaceDescriptorData* data) {
   Register registers[] = {
       esi,  // context
-      eax,  // callee
+      edi,  // callee
       ebx,  // call_data
       ecx,  // holder
       edx,  // api_function_address
-      edi,  // actual number of arguments
+      eax,  // actual number of arguments
   };
   Representation representations[] = {
       Representation::Tagged(),     // context
@@ -327,7 +327,7 @@ void ApiFunctionDescriptor::Initialize(CallInterfaceDescriptorData* data) {
 void ApiAccessorDescriptor::Initialize(CallInterfaceDescriptorData* data) {
   Register registers[] = {
       esi,  // context
-      eax,  // callee
+      edi,  // callee
       ebx,  // call_data
       ecx,  // holder
       edx,  // api_function_address