Split dart:builtin into dart:builtin and dart:io.

tests/standalone/src/ProcessBrokenPipeTest.dart

Index: tests/standalone/src/ProcessBrokenPipeTest.dart
diff --git a/tests/standalone/src/ProcessBrokenPipe.dart b/tests/standalone/src/ProcessBrokenPipeTest.dart
similarity index 87%
rename from tests/standalone/src/ProcessBrokenPipe.dart
rename to tests/standalone/src/ProcessBrokenPipeTest.dart
index 942972b8a1debb70be5d32e840576260c8d2b08e..d32e538eee732782d075969b32243c268a5e9e9b 100644
--- a/tests/standalone/src/ProcessBrokenPipe.dart
+++ b/tests/standalone/src/ProcessBrokenPipeTest.dart
@@ -4,11 +4,13 @@
 //
 // Process test program to test closed stdin from child process.
 
+#import('dart:io');
+
 #source("ProcessTestUtil.dart");
 
 main() {
   // Running dart without arguments makes it close right away.
-  Process process = new Process.start(getDartBinFileName(), []);
+  Process process = new Process.start(getDartFileName(), []);
 
   // Write to the stdin after the process is terminated to test
   // writing to a broken pipe.