Make failures in test cases print failing source file.
diff --git a/Lib/test/test_compiler.py b/Lib/test/test_compiler.py
index c328d71..f58e6e5 100644
--- a/Lib/test/test_compiler.py
+++ b/Lib/test/test_compiler.py
@@ -32,7 +32,11 @@
                     self.assertRaises(SyntaxError, compiler.compile,
                                       buf, basename, "exec")
                 else:
-                    compiler.compile(buf, basename, "exec")
+                    try:
+                        compiler.compile(buf, basename, "exec")
+                    except Exception, e:
+                        e.args[0] += "[in file %s]" % basename
+                        raise
 
     def testNewClassSyntax(self):
         compiler.compile("class foo():pass\n\n","<string>","exec")