Added CallInterfaceDescriptors to all code stubs.

src/ia32/code-stubs-ia32.cc

Index: src/ia32/code-stubs-ia32.cc
diff --git a/src/ia32/code-stubs-ia32.cc b/src/ia32/code-stubs-ia32.cc
index e92254d10e460577a6b56e5027a196daaec2be4b..ef507b534b3f9b269b6dedbe6256cbb597832624 100644
--- a/src/ia32/code-stubs-ia32.cc
+++ b/src/ia32/code-stubs-ia32.cc
@@ -380,7 +380,8 @@ void FloatingPointHelper::CheckFloatOperands(MacroAssembler* masm,
 
 void MathPowStub::Generate(MacroAssembler* masm) {
   Factory* factory = isolate()->factory();
-  const Register exponent = eax;
+  const Register exponent = MathPowTaggedDescriptor::exponent();
+  DCHECK(exponent.is(eax));
   const Register base = edx;
   const Register scratch = ecx;
   const XMMRegister double_result = xmm3;
@@ -659,6 +660,8 @@ void FunctionPrototypeStub::Generate(MacroAssembler* masm) {
 
 void ArgumentsAccessStub::GenerateReadElement(MacroAssembler* masm) {
   // The key is in edx and the parameter count is in eax.
+  DCHECK(edx.is(ArgumentsAccessReadDescriptor::index()));
+  DCHECK(eax.is(ArgumentsAccessReadDescriptor::parameter_count()));
 
   // The displacement is used for skipping the frame pointer on the
   // stack. It is the offset of the last parameter (if any) relative
@@ -4634,6 +4637,7 @@ void CallApiGetterStub::Generate(MacroAssembler* masm) {
   //  -- ...
   //  -- edx                    : api_function_address
   // -----------------------------------
+  DCHECK(edx.is(ApiGetterDescriptor::function_address()));
 
   // array for v8::Arguments::values_, handler for name and pointer
   // to the values (it considered as smi in GC).