feature #9360 [Finder] Fix finder date constraints and tests (ruian)

This PR was merged into the 2.5-dev branch.

Discussion
----------

[Finder] Fix finder date constraints and tests

Description:
When you search some files with date constraints, all folders are given, even if they are not in the date scope.

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  |no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #9303
| License       | MIT

Commits
-------

4ccafa6 Fix finder date constraints and tests

src/Symfony/Component/Finder/Iterator/DateRangeFilterIterator.php

@@ -44,10 +44,6 @@ class DateRangeFilterIterator extends FilterIterator
     {
         $fileinfo = $this->current();
 
-        if (!$fileinfo->isFile()) {
-            return true;
-        }
-
         $filedate = $fileinfo->getMTime();
         foreach ($this->comparators as $compare) {
             if (!$compare->test($filedate)) {

src/Symfony/Component/Finder/Tests/Iterator/DateRangeFilterIteratorTest.php

@@ -57,12 +57,8 @@ class DateRangeFilterIteratorTest extends RealIteratorTestCase
         );
 
         $untilLastMonth = array(
-            '.git',
-            'foo',
             'foo/bar.tmp',
             'test.php',
-            'toto',
-            '.foo',
         );
 
         return array(