Toward precompiled snapshots.

tools/precompilation/create_instructions_snapshot_assembly.dart

Index: tools/precompilation/create_instructions_snapshot_assembly.dart
diff --git a/tools/precompilation/create_instructions_snapshot_assembly.dart b/tools/precompilation/create_instructions_snapshot_assembly.dart
new file mode 100644
index 0000000000000000000000000000000000000000..98cccb26db7563c27700d15b5c16a27d902500f9
--- /dev/null
+++ b/tools/precompilation/create_instructions_snapshot_assembly.dart
@@ -0,0 +1,21 @@
+import 'dart:io';
+
+void main(List<String> args) {
+  print(args[0]);
+  print(args[1]);
+
+  var bytes = new File(args[0]).readAsBytesSync();
+  print(bytes.length);
+
+  var out = new StringBuffer();
+  out.writeln(".text");
+  out.writeln("  .globl _kInstructionsSnapshot");
+  out.writeln("_kInstructionsSnapshot:");
+  out.writeln("  .balign 32, 0");
+  for (var i = 0; i < bytes.length; i++) {
+    var byte = bytes[i];
+    out.writeln("  .byte $byte");
+  }
+
+  new File(args[1]).writeAsString(out.toString());
+}