Add support for TypedData in full snapshot.

runtime/vm/snapshot.h

Index: runtime/vm/snapshot.h
===================================================================
--- runtime/vm/snapshot.h	(revision 39220)
+++ runtime/vm/snapshot.h	(working copy)
@@ -33,41 +33,42 @@
 class RawArray;
 class RawBigint;
 class RawBoundedType;
-class RawMixinAppType;
+class RawCapability;
 class RawClass;
+class RawClosureData;
 class RawContext;
 class RawDouble;
 class RawField;
-class RawClosureData;
-class RawRedirectionData;
+class RawFloat32x4;
+class RawFloat64x2;
 class RawFunction;
 class RawGrowableObjectArray;
-class RawLinkedHashMap;
-class RawFloat32x4;
-class RawFloat64x2;
+class RawImmutableArray;
 class RawInt32x4;
-class RawImmutableArray;
 class RawLanguageError;
 class RawLibrary;
 class RawLibraryPrefix;
-class RawNamespace;
+class RawLinkedHashMap;
 class RawLiteralToken;
 class RawMint;
+class RawMixinAppType;
+class RawNamespace;
 class RawObject;
 class RawOneByteString;
 class RawPatchClass;
+class RawReceivePort;
+class RawRedirectionData;
 class RawScript;
+class RawSendPort;
 class RawSmi;
-class RawCapability;
-class RawReceivePort;
-class RawSendPort;
 class RawStacktrace;
 class RawTokenStream;
+class RawTwoByteString;
 class RawType;
+class RawTypeArguments;
+class RawTypedData;
+class RawTypeParameter;
 class RawTypeRef;
-class RawTypeParameter;
-class RawTypeArguments;
-class RawTwoByteString;
 class RawUnhandledException;
 class RawUnresolvedClass;
 class String;
@@ -285,6 +286,7 @@
   RawInstance* NewInstance();
   RawMint* NewMint(int64_t value);
   RawBigint* NewBigint(const char* hex_string);
+  RawTypedData* NewTypedData(intptr_t class_id, intptr_t len);
   RawDouble* NewDouble(double value);
   RawUnresolvedClass* NewUnresolvedClass();
   RawType* NewType();
@@ -333,7 +335,7 @@
   };
 
   // Allocate uninitialized objects, this is used when reading a full snapshot.
-  RawObject* AllocateUninitialized(const Class& cls, intptr_t size);
+  RawObject* AllocateUninitialized(intptr_t class_id, intptr_t size);
 
   RawClass* ReadClassId(intptr_t object_id);
   RawObject* ReadObjectImpl();