Implement the full process interface for Windows

tests/dart/src/ProcessStdoutTest.dart

Index: tests/dart/src/ProcessStdoutTest.dart
===================================================================
--- tests/dart/src/ProcessStdoutTest.dart	(revision 380)
+++ tests/dart/src/ProcessStdoutTest.dart	(working copy)
@@ -7,7 +7,7 @@
 class ProcessStdoutTest {
 
   static void testExit() {
-    Process process = new Process("out/Debug_ia32//process_test",
+    Process process = new Process("Debug_ia32\\process_test.exe",
                                    const ["0", "1", "99", "0"]);
     final int BUFFERSIZE = 10;
     final int STARTCHAR = 65;
@@ -28,7 +28,7 @@
       print("data written");
       void readData() {
         print("data read");
-        for (int i = 0; i < BUFFERSIZE; i++) {
+        for (int i = 0; i < BUFFERSIZE - 1; i++) {
           Expect.equals(buffer[i], readBuffer[i]);
         }
         process.close();