Fixes #163 - small fix in the mangling logic, renames all expected test files

test/run.sh

 #!/bin/bash
 # Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 # Usage: call directly in the commandline as test/run.sh ensuring that you have
 # both 'dart' and 'DumpRenderTree' in your path. Filter tests by passing a
 # pattern as an argument to this script.
 
 # TODO(sigmund): replace with a real test runner
@@ skipping 64 matching lines @@
 
 pushd $DIR
 dart $DART_FLAGS run_all.dart $TEST_PATTERN
 popd
 
 # TODO(jmesserly): bash and dart regexp might not be 100% the same. Ideally we
 # could do all the heavy lifting in Dart code, and keep this script as a thin
 # wrapper that sets `--enable-type-checks --enable-asserts`
 for input in $DIR/data/input/*_test.html; do
   if [[ ($TEST_PATTERN == "") || ($input =~ $TEST_PATTERN) ]]; then
-    FILENAME=`basename $input.html`
+    FILENAME=`basename $input`
     echo -e -n "Testing $FILENAME "
     DUMP="$DIR/data/output/$FILENAME.txt"
     EXPECTATION="$DIR/data/expected/$FILENAME.txt"
     DART_PACKAGE_ROOT="file://$DIR/packages/" \
-        DumpRenderTree $DIR/data/output/_$FILENAME > $DUMP
+        DumpRenderTree $DIR/data/output/$FILENAME > $DUMP
 
     compare $EXPECTATION $DUMP
   fi
 done
 
 # Run Dart analyzer to check that we're generating warning clean code.
 OUT_PATTERN="$DIR/data/output/*$TEST_PATTERN*_bootstrap.dart"
 if [[ `ls $OUT_PATTERN 2>/dev/null` != "" ]]; then
   echo -e "\n Analyzing generated code for warnings or type errors."
   # TODO(jmesserly): batch mode does not return the right exit code.
   ls $OUT_PATTERN | dart_analyzer --fatal-warnings --fatal-type-errors \
     --work $DIR/data/output/analyzer/ -batch
 fi
 
 echo All tests pass.