StubCallInterfaceDescriptor takes a context register.

src/arm64/lithium-arm64.h

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_ARM64_LITHIUM_ARM64_H_
 #define V8_ARM64_LITHIUM_ARM64_H_
 
 #include "src/hydrogen.h"
 #include "src/lithium.h"
 #include "src/lithium-allocator.h"
@@ skipping 1505 matching lines @@
   DECLARE_CONCRETE_INSTRUCTION(Integer32ToDouble, "int32-to-double")
 };
 
 
 class LCallWithDescriptor V8_FINAL : public LTemplateResultInstruction<1> {
  public:
   LCallWithDescriptor(const CallInterfaceDescriptor* descriptor,
                       const ZoneList<LOperand*>& operands,
                       Zone* zone)
     : descriptor_(descriptor),
-      inputs_(descriptor->environment_length() + 1, zone) {
-    ASSERT(descriptor->environment_length() + 1 == operands.length());
+      inputs_(descriptor->GetEnvironmentLength() + 1, zone) {
+    ASSERT(descriptor->GetEnvironmentLength() + 1 == operands.length());
     inputs_.AddAll(operands, zone);
   }
 
   LOperand* target() const { return inputs_[0]; }
 
   const CallInterfaceDescriptor* descriptor() { return descriptor_; }
 
  private:
   DECLARE_CONCRETE_INSTRUCTION(CallWithDescriptor, "call-with-descriptor")
   DECLARE_HYDROGEN_ACCESSOR(CallWithDescriptor)
@@ skipping 1701 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(LChunkBuilder);
 };
 
 #undef DECLARE_HYDROGEN_ACCESSOR
 #undef DECLARE_CONCRETE_INSTRUCTION
 
 } }  // namespace v8::internal
 
 #endif  // V8_ARM64_LITHIUM_ARM64_H_