Fix http://dartbug.com/23578:

runtime/include/dart_api.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 INCLUDE_DART_API_H_
 #define INCLUDE_DART_API_H_
 
 /** \mainpage Dart Embedding API Reference
@@ skipping 667 matching lines @@
 
 /**
  * Gets the version string for the Dart VM.
  *
  * The version of the Dart VM can be accessed without initializing the VM.
  *
  * \return The version string for the embedded Dart VM.
  */
 DART_EXPORT const char* Dart_VersionString();
 
+
+/**
+ * Isolate specific flags are set when creating a new isolate using the
+ * Dart_IsolateFlags structure.
+ *
+ * Current version of flags is encoded in a 32-bit integer with 16 bits used
+ * for each part.
+ */
+
+#define DART_FLAGS_CURRENT_VERSION (0x00000001)
+
+typedef struct {
+  int32_t version;
+  bool enable_type_checks;
+  bool enable_asserts;
+} Dart_IsolateFlags;
+
 /**
  * An isolate creation and initialization callback function.
  *
  * This callback, provided by the embedder, is called when the vm
  * needs to create an isolate. The callback should create an isolate
  * by calling Dart_CreateIsolate and load any scripts required for
  * execution.
  *
  * When the function returns false, it is the responsibility of this
  * function to ensure that Dart_ShutdownIsolate has been called if
@@ skipping 18 matching lines @@
  *   The callback is responsible for loading the script used in the
  *   parent isolate by a call to Dart_LoadScript or
  *   Dart_LoadScriptFromSnapshot.
  * \param main The name of the main entry point this isolate will
  *   eventually run.  This is provided for advisory purposes only to
  *   improve debugging messages.  The main function is not invoked by
  *   this function.
  * \param package_root The package root path for this isolate to resolve
  *   package imports against. If this parameter is NULL, the package root path
  *   of the parent isolate should be used.
+ * \param flags Default flags for this isolate being spawned. Either inherited
+ *   from the spawning isolate or passed as parameters when spawning the
+ *   isolate from Dart code.
  * \param callback_data The callback data which was passed to the
  *   parent isolate when it was created by calling Dart_CreateIsolate().
  * \param error A structure into which the embedder can place a
  *   C string containing an error message in the case of failures.
  *
  * \return The embedder returns NULL if the creation and
  *   initialization was not successful and the isolate if successful.
  */
 typedef Dart_Isolate (*Dart_IsolateCreateCallback)(const char* script_uri,
                                                    const char* main,
                                                    const char* package_root,
+                                                   Dart_IsolateFlags* flags,
                                                    void* callback_data,
                                                    char** error);
 
 /**
  * An isolate interrupt callback function.
  *
  * This callback, provided by the embedder, is called when an isolate
  * is interrupted as a result of a call to Dart_InterruptIsolate().
  * When the callback is called, Dart_CurrentIsolate can be used to
  * figure out which isolate is being interrupted.
@@ skipping 140 matching lines @@
  * isolate will be started using that snapshot data.
  *
  * Requires there to be no current isolate.
  *
  * \param script_uri The name of the script this isolate will load.
  *   Provided only for advisory purposes to improve debugging messages.
  * \param main The name of the main entry point this isolate will run.
  *   Provided only for advisory purposes to improve debugging messages.
  * \param snapshot A buffer containing a snapshot of the isolate or
  *   NULL if no snapshot is provided.
+ * \param flags Pointer to VM specific flags or NULL for default flags.
  * \param callback_data Embedder data.  This data will be passed to
  *   the Dart_IsolateCreateCallback when new isolates are spawned from
  *   this parent isolate.
  * \param error DOCUMENT
  *
  * \return The new isolate is returned. May be NULL if an error
  *   occurs duing isolate initialization.
  */
 DART_EXPORT Dart_Isolate Dart_CreateIsolate(const char* script_uri,
                                             const char* main,
                                             const uint8_t* snapshot,
+                                            Dart_IsolateFlags* flags,
                                             void* callback_data,
                                             char** error);
 /* TODO(turnidge): Document behavior when there is already a current
  * isolate. */
 
 /**
  * Shuts down the current isolate. After this call, the current isolate
  * is NULL. Invokes the shutdown callback and any callbacks of remaining
  * weak persistent handles.
  *
@@ skipping 1927 matching lines @@
  * NOTE: If multiple callbacks with the same name are registered, only
  * the last callback registered will be remembered.
  */
 DART_EXPORT void Dart_RegisterRootServiceRequestCallback(
     const char* method,
     Dart_ServiceRequestCallback callback,
     void* user_data);
 
 
 #endif  /* INCLUDE_DART_API_H_ */  /* NOLINT */