Add Dart_Save/LoadCompilationTrace.

runtime/include/dart_api.h

Index: runtime/include/dart_api.h
diff --git a/runtime/include/dart_api.h b/runtime/include/dart_api.h
index 1fc94b8e1748499ca4f636b56b95424b516af571..f9ea819503d5b98afa0210dea81752e60c5e1ce3 100644
--- a/runtime/include/dart_api.h
+++ b/runtime/include/dart_api.h
@@ -3194,12 +3194,38 @@ DART_EXPORT bool Dart_IsServiceIsolate(Dart_Isolate isolate);
 DART_EXPORT Dart_Port Dart_ServiceWaitForLoadPort();
 
 
+/**
+ * Record all functions which have been compiled in the current isolate.
+ *
+ * \param buffer Returns a pointer to a buffer containing the trace.
+ *   This buffer is scope allocated and is only valid  until the next call to
+ *   Dart_ExitScope.
+ * \param size Returns the size of the buffer.
+ * \return Returns an valid handle upon success.
+ */
+DART_EXPORT Dart_Handle Dart_SaveCompilationTrace(uint8_t** buffer,
+                                                  intptr_t* buffer_length);
+
+
+/**
+ * Compile all functions from data from Dart_SaveCompilationTrace. Unlike JIT
+ * feedback, this data is fuzzy: loading does not need to happen in the exact
+ * program that was saved, the saver and loader do not need to agree on checked
+ * mode versus production mode or debug/release/product.
+ *
+ * \return Returns an error handle if a compilation error was encountered.
+ */
+DART_EXPORT Dart_Handle Dart_LoadCompilationTrace(uint8_t* buffer,
+                                                  intptr_t buffer_length);
+
+
 /*
  * ==============
  * Precompilation
  * ==============
  */
 
+
 /**
  * Saves a serialized version of the information collected for use by the
  * optimizing compiler, such as type feedback and usage counters. When this