Support for taking full snapshots from 'dart', not just 'dart_bootstrap'.

runtime/vm/symbols.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_SYMBOLS_H_
 #define VM_SYMBOLS_H_
 
 #include "vm/growable_array.h"
 #include "vm/object.h"
 #include "vm/snapshot_ids.h"
@@ skipping 537 matching lines @@
   DART_KEYWORD_LIST(DEFINE_SYMBOL_HANDLE_ACCESSOR)
 #undef DEFINE_SYMBOL_HANDLE_ACCESSOR
 
   // Get symbol for scanner token.
   static const String& Token(Token::Kind token);
 
   // Initialize frequently used symbols in the vm isolate.
   static void InitOnce(Isolate* isolate);
   static void InitOnceFromSnapshot(Isolate* isolate);
 
-  // Add all the symbols that were cached in the VM isolate to this isolate,
-  // we do this when an Isolate is not created from the snapshot so that
-  // we get a unified symbol table that can be be dumped into the VM isolate
-  // snapshot.
-  static void AddPredefinedSymbolsToIsolate();
-
   // Initialize and setup a symbol table for the isolate.
   static void SetupSymbolTable(Isolate* isolate);
 
+  static RawArray* UnifiedSymbolTable();
+
+#if defined(DART_PRECOMPILER)
   // Treat the symbol table as weak and collect garbage. Answer the number of
   // symbols deleted from the symbol table because they where not referenced
   // from anywhere else.
   static intptr_t Compact(Isolate* isolate);
+#endif
 
   // Creates a Symbol given a C string that is assumed to contain
   // UTF-8 encoded characters and '\0' is considered a termination character.
   // TODO(7123) - Rename this to FromCString(....).
   static RawString* New(Thread* thread, const char* cstr) {
     return New(thread, cstr, strlen(cstr));
   }
   static RawString* New(Thread* thread, const char* cstr, intptr_t length);
 
   // Creates a new Symbol from an array of UTF-8 encoded characters.
@@ skipping 96 matching lines @@
   friend class SnapshotReader;
   friend class SnapshotWriter;
   friend class ApiMessageReader;
 
   DISALLOW_COPY_AND_ASSIGN(Symbols);
 };
 
 }  // namespace dart
 
 #endif  // VM_SYMBOLS_H_