Add argument to Dart_Initialize for precompiled instructions.

runtime/vm/dart_api_impl.cc

Index: runtime/vm/dart_api_impl.cc
diff --git a/runtime/vm/dart_api_impl.cc b/runtime/vm/dart_api_impl.cc
index ba7da53ef90e19f72b12314cafd41d30e7e43cb2..151d669359707f99f0f6ffb86835f3d51c700b74 100644
--- a/runtime/vm/dart_api_impl.cc
+++ b/runtime/vm/dart_api_impl.cc
@@ -1266,6 +1266,7 @@ DART_EXPORT const char* Dart_VersionString() {
 
 DART_EXPORT bool Dart_Initialize(
     const uint8_t* vm_isolate_snapshot,
+    const uint8_t* instructions_snapshot,
     Dart_IsolateCreateCallback create,
     Dart_IsolateInterruptCallback interrupt,
     Dart_IsolateUnhandledExceptionCallback unhandled,
@@ -1276,6 +1277,7 @@ DART_EXPORT bool Dart_Initialize(
     Dart_FileCloseCallback file_close,
     Dart_EntropySource entropy_source) {
   const char* err_msg = Dart::InitOnce(vm_isolate_snapshot,
+                                       instructions_snapshot,
                                        create, interrupt, unhandled, shutdown,
                                        file_open, file_read, file_write,
                                        file_close, entropy_source);