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

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 a53ede7909ea2035b94d7b2defc00a3f3fb9161e..58cd080008ab867380eed06cde181d2e1ffa5ffa 100644
--- a/runtime/vm/dart_api_impl.cc
+++ b/runtime/vm/dart_api_impl.cc
@@ -1494,8 +1494,7 @@ DART_EXPORT Dart_Handle Dart_CreateSnapshot(
                             vm_isolate_snapshot_buffer,
                             isolate_snapshot_buffer,
                             ApiReallocate,
-                            NULL, /* instructions_writer */
-                            true /* vm_isolate_is_symbolic */);
+                            NULL /* instructions_writer */);
   writer.WriteFullSnapshot();
   *vm_isolate_snapshot_size = writer.VmIsolateSnapshotSize();
   *isolate_snapshot_size = writer.IsolateSnapshotSize();
@@ -6123,8 +6122,7 @@ DART_EXPORT Dart_Handle Dart_CreatePrecompiledSnapshotAssembly(
                             vm_isolate_snapshot_buffer,
                             isolate_snapshot_buffer,
                             ApiReallocate,
-                            &instructions_writer,
-                            false /* vm_isolate_is_symbolic */);
+                            &instructions_writer);
 
   writer.WriteFullSnapshot();
   *vm_isolate_snapshot_size = writer.VmIsolateSnapshotSize();
@@ -6185,8 +6183,7 @@ DART_EXPORT Dart_Handle Dart_CreatePrecompiledSnapshotBlob(
                             vm_isolate_snapshot_buffer,
                             isolate_snapshot_buffer,
                             ApiReallocate,
-                            &instructions_writer,
-                            false /* vm_isolate_is_symbolic */);
+                            &instructions_writer);
 
   writer.WriteFullSnapshot();
   *vm_isolate_snapshot_size = writer.VmIsolateSnapshotSize();
@@ -6284,8 +6281,7 @@ DART_EXPORT Dart_Handle Dart_CreatePrecompiledJITSnapshotBlob(
                             vm_isolate_snapshot_buffer,
                             isolate_snapshot_buffer,
                             ApiReallocate,
-                            &instructions_writer,
-                            false /* vm_isolate_is_symbolic */);
+                            &instructions_writer);
   writer.WriteFullSnapshot();
   *vm_isolate_snapshot_size = writer.VmIsolateSnapshotSize();
   *isolate_snapshot_size = writer.IsolateSnapshotSize();