Clean up useless comments in MatcherTest.

Change-Id: I921a8e1edb1d2aa596325cf03c04196328b3930b

Conflicts:
	harmony-tests/src/test/java/org/apache/harmony/tests/java/util/regex/MatcherTest.java
Fix a bug in DateFormat, clean up some SimpleDateFormat tests.

We failed a couple of tests because of an assumption about the default
time zone:

  junit.framework.AssertionFailedError: Wrong format: " d" expected:  12 result:  11
  at java.text.SimpleDateFormatTest.test(SimpleDateFormatTest.java:55)
  at org.apache.harmony.tests.java.text.SimpleDateFormatTest.test_formatLjava_util_DateLjava_lang_StringBufferLjava_text_FieldPosition(SimpleDateFormatTest.java:347)

  junit.framework.AssertionFailedError: Wrong result: h input:  12 expected: Thu Jan 01 00:00:00 UTC 1970 result: Thu Jan 01 08:00:00 UTC 1970
  at java.text.SimpleDateFormatTest.parse(SimpleDateFormatTest.java:86)
  at org.apache.harmony.tests.java.text.SimpleDateFormatTest.test_parseLjava_lang_StringLjava_text_ParsePosition(SimpleDateFormatTest.java:546)

Cleaning up the tests and merging OldSimpleDateFormatTest into
SimpleDateFormatTest accidentally made one of our tests more
strict, at which point it failed because we weren't updating the
FieldPosition for 'z' or 'Z' when formatting or parsing. So this
patch fixes that by mapping the DateFormat.Field to the appropriate
int for Calendar.

Change-Id: If4b2f2c02d8ccd50d96d77df3b60e1c1d65ae666
Add a regression test for an already-fixed formatDateRange bug.

Bug: 8467515
Change-Id: I37fe971c1136301d2cc29bd6bc321133dbe50f5e
Add a regression test for an already-fixed formatDateRange bug.

Bug: 8467515
Change-Id: I37fe971c1136301d2cc29bd6bc321133dbe50f5e

Conflicts:
	luni/src/test/java/libcore/icu/DateIntervalFormatTest.java
Use sk_FOO_pop_free instead of sk_FOO_free

The proper way to free a stack of owned "FOO" items is to use
sk_FOO_pop_free since that will iterate through all the FOO instances
in the stack and free them. Calling sk_FOO_free just frees the stack and
not the items.

(cherry picked from commit 64299318644c0c6b86992d414e68d0af236b52c5)

Bug: 10610037
Bug: http://code.google.com/p/android/issues/detail?id=59536
Change-Id: I8af603b10219acb476666e77cc776b6936a19f8d