Add Stdio.readByteSync and Stdio.readLineSync.

runtime/bin/io_natives.cc

Index: runtime/bin/io_natives.cc
diff --git a/runtime/bin/io_natives.cc b/runtime/bin/io_natives.cc
index 0ccd52024a08eca854894e6a260764c0b0f5ec70..c2a3a967e21be45eb1aa7e67a63586efebfc6a0a 100644
--- a/runtime/bin/io_natives.cc
+++ b/runtime/bin/io_natives.cc
@@ -41,6 +41,16 @@ namespace bin {
   V(Process_Exit, 1)                                                           \
   V(Process_Sleep, 1)                                                          \
   V(Process_Pid, 1)                                                            \
+  V(SecureSocket_Connect, 9)                                                   \
+  V(SecureSocket_Destroy, 1)                                                   \
+  V(SecureSocket_Handshake, 1)                                                 \
+  V(SecureSocket_Init, 1)                                                      \
+  V(SecureSocket_PeerCertificate, 1)                                           \
+  V(SecureSocket_RegisterBadCertificateCallback, 2)                            \
+  V(SecureSocket_RegisterHandshakeCompleteCallback, 2)                         \
+  V(SecureSocket_InitializeLibrary, 3)                                         \
+  V(SecureSocket_NewServicePort, 0)                                            \
+  V(SecureSocket_FilterPointer, 1)                                             \
   V(ServerSocket_CreateBindListen, 5)                                          \
   V(ServerSocket_Accept, 2)                                                    \
   V(Socket_CreateConnect, 3)                                                   \
@@ -54,16 +64,7 @@ namespace bin {
   V(Socket_NewServicePort, 0)                                                  \
   V(Socket_GetType, 1)                                                         \
   V(Socket_SetOption, 3)                                                       \
-  V(SecureSocket_Connect, 9)                                                   \
-  V(SecureSocket_Destroy, 1)                                                   \
-  V(SecureSocket_Handshake, 1)                                                 \
-  V(SecureSocket_Init, 1)                                                      \
-  V(SecureSocket_PeerCertificate, 1)                                           \
-  V(SecureSocket_RegisterBadCertificateCallback, 2)                            \
-  V(SecureSocket_RegisterHandshakeCompleteCallback, 2)                         \
-  V(SecureSocket_InitializeLibrary, 3)                                         \
-  V(SecureSocket_NewServicePort, 0)                                            \
-  V(SecureSocket_FilterPointer, 1)                                             \
+  V(Stdin_ReadByte, 1)                                                         \
   V(StringToSystemEncoding, 1)                                                 \
   V(SystemEncodingToString, 1)