Option to output precompiled instructions as a blob for use with mmap instead of assembly for use i…

runtime/vm/snapshot_test.cc

Index: runtime/vm/snapshot_test.cc
diff --git a/runtime/vm/snapshot_test.cc b/runtime/vm/snapshot_test.cc
index 573addf1b36868ff64fcda061aecaea30a9f3d79..bf15a61574aa59ddf1d4be3ddba3f00c562b9810 100644
--- a/runtime/vm/snapshot_test.cc
+++ b/runtime/vm/snapshot_test.cc
@@ -1186,8 +1186,8 @@ UNIT_TEST_CASE(FullSnapshot) {
     {
       FullSnapshotWriter writer(NULL,
                                 &isolate_snapshot_buffer,
-                                NULL, /* instructions_snapshot_buffer */
                                 &malloc_allocator,
+                                NULL, /* instructions_writer */
                                 false, /* snapshot_code */
                                 true);
       writer.WriteFullSnapshot();
@@ -1247,8 +1247,8 @@ UNIT_TEST_CASE(FullSnapshot1) {
     {
       FullSnapshotWriter writer(NULL,
                                 &isolate_snapshot_buffer,
-                                NULL, /* instructions_snapshot_buffer */
                                 &malloc_allocator,
+                                NULL, /* instructions_writer */
                                 false, /* snapshot_code */
                                 true /* vm_isolate_is_symbolic */);
       writer.WriteFullSnapshot();