Fuchsia: Build standalone VM. Make it run "Hello, World!".

runtime/bin/stdio_fuchsia.cc

Index: runtime/bin/stdio_fuchsia.cc
diff --git a/runtime/bin/stdio_fuchsia.cc b/runtime/bin/stdio_fuchsia.cc
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index 0000000000000000000000000000000000000000..e29749988373aedb3ade708c299a454a3da2e1ab
--- /dev/null
+++ b/runtime/bin/stdio_fuchsia.cc
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+// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+#if !defined(DART_IO_DISABLED)
+
+#include "platform/globals.h"
+#if defined(TARGET_OS_FUCHSIA)
+
+#include "bin/stdio.h"
+
+namespace dart {
+namespace bin {
+
+int Stdin::ReadByte() {
+  UNIMPLEMENTED();
+  return -1;
+}
+
+
+bool Stdin::GetEchoMode() {
+  UNIMPLEMENTED();
+  return false;
+}
+
+
+void Stdin::SetEchoMode(bool enabled) {
+  UNIMPLEMENTED();
+}
+
+
+bool Stdin::GetLineMode() {
+  UNIMPLEMENTED();
+  return false;
+}
+
+
+void Stdin::SetLineMode(bool enabled) {
+  UNIMPLEMENTED();
+}
+
+
+bool Stdout::GetTerminalSize(intptr_t fd, int size[2]) {
+  UNIMPLEMENTED();
+  return false;
+}
+
+}  // namespace bin
+}  // namespace dart
+
+#endif  // defined(TARGET_OS_FUCHSIA)
+
+#endif  // !defined(DART_IO_DISABLED)