Rename {run,start}Unittest to {run,start}Test.

test/io.dart

Index: test/io.dart
diff --git a/test/io.dart b/test/io.dart
index 46b42623f1226ea65e63a6c25e39c99b651c0373..4f36c79df5eb035250cf304540dd3662d49f77c8 100644
--- a/test/io.dart
+++ b/test/io.dart
@@ -19,7 +19,7 @@ final _pubPath = p.join(
     Platform.isWindows ? 'pub.bat' : 'pub');
 
 /// Runs the test executable with the package root set properly.
-ProcessResult runUnittest(List<String> args, {String workingDirectory,
+ProcessResult runTest(List<String> args, {String workingDirectory,
     Map<String, String> environment}) {
   var allArgs = [
     p.absolute(p.join(packageDir, 'bin/test.dart')),
@@ -53,7 +53,7 @@ ProcessResult runPub(List<String> args, {String workingDirectory,
 }
 
 /// Starts the test executable with the package root set properly.
-Future<Process> startUnittest(List<String> args, {String workingDirectory,
+Future<Process> startTest(List<String> args, {String workingDirectory,
     Map<String, String> environment}) {
   var allArgs = [
     p.absolute(p.join(packageDir, 'bin/test.dart')),