AOT: Add a separate switchable call state for unlinked calls.

runtime/vm/raw_object.h

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_RAW_OBJECT_H_
 #define VM_RAW_OBJECT_H_
 
 #include "platform/assert.h"
 #include "vm/atomic.h"
 #include "vm/globals.h"
@@ skipping 22 matching lines @@
   V(Instructions)                                                              \
   V(ObjectPool)                                                                \
   V(PcDescriptors)                                                             \
   V(CodeSourceMap)                                                             \
   V(Stackmap)                                                                  \
   V(LocalVarDescriptors)                                                       \
   V(ExceptionHandlers)                                                         \
   V(Context)                                                                   \
   V(ContextScope)                                                              \
   V(SingleTargetCache)                                                         \
+  V(UnlinkedCall)                                                              \
   V(ICData)                                                                    \
   V(MegamorphicCache)                                                          \
   V(SubtypeTestCache)                                                          \
   V(Error)                                                                     \
     V(ApiError)                                                                \
     V(LanguageError)                                                           \
     V(UnhandledException)                                                      \
     V(UnwindError)                                                             \
   V(Instance)                                                                  \
     V(LibraryPrefix)                                                           \
@@ skipping 1449 matching lines @@
   RawCode* target_;
   RawObject** to() {
     return reinterpret_cast<RawObject**>(&ptr()->target_);
   }
   uword entry_point_;
   classid_t lower_limit_;
   classid_t upper_limit_;
 };
 
 
+class RawUnlinkedCall : public RawObject {
+  RAW_HEAP_OBJECT_IMPLEMENTATION(UnlinkedCall);
+  RawObject** from() {
+    return reinterpret_cast<RawObject**>(&ptr()->target_name_);
+  }
+  RawString* target_name_;
+  RawArray* args_descriptor_;
+  RawObject** to() {
+    return reinterpret_cast<RawObject**>(&ptr()->args_descriptor_);
+  }
+};
+
+
 class RawICData : public RawObject {
   RAW_HEAP_OBJECT_IMPLEMENTATION(ICData);
 
   RawObject** from() {
     return reinterpret_cast<RawObject**>(&ptr()->ic_data_);
   }
   RawArray* ic_data_;  // Contains class-ids, target and count.
   RawString* target_name_;  // Name of target function.
   RawArray* args_descriptor_;  // Arguments descriptor.
   RawObject* owner_;  // Parent/calling function or original IC of cloned IC.
@@ skipping 949 matching lines @@
   COMPILE_ASSERT(kExternalTypedDataInt8ArrayCid ==
                  kTypedDataInt8ArrayViewCid + 15);
   COMPILE_ASSERT(kByteBufferCid == kExternalTypedDataInt8ArrayCid + 14);
   COMPILE_ASSERT(kNullCid == kByteBufferCid + 1);
   return (kNullCid - kTypedDataInt8ArrayCid);
 }
 
 }  // namespace dart
 
 #endif  // VM_RAW_OBJECT_H_