Migrated test block 23 to Dart 2.0.

tests/corelib/corelib.status

Index: tests/corelib/corelib.status
diff --git a/tests/corelib/corelib.status b/tests/corelib/corelib.status
index 27d71f2256c77e5973186ad07cf31b66cc9a1875..ff9c16fd17e1314e70629efd2db1ecb8a74d5366 100644
--- a/tests/corelib/corelib.status
+++ b/tests/corelib/corelib.status
@@ -277,14 +277,6 @@ regexp/non-capturing-groups_test: Crash
 regexp/parentheses_test: Crash
 regexp/pcre-test-4_test: Crash
 regexp/pcre_test: Crash
-regexp/range-out-of-order_test: Crash
-regexp/regexp_kde_test: Crash
-regexp/regexp_test: Crash
-regexp/regress-regexp-codeflush_test: Crash
-regexp/standalones_test: Crash
-regexp/toString_test: Crash
-regexp/unicode-handling_test: Crash
-regexp/unicodeCaseInsensitive_test: Crash
 regress_r21715_test: RuntimeError
 set_containsAll_test: Crash
 set_contains_test: Crash
@@ -448,13 +440,6 @@ regexp/non-character_test: Crash
 regexp/non-greedy-parentheses_test: Crash
 regexp/norepeat_test: Crash
 regexp/overflow_test: Crash
-regexp/quantified-assertions_test: Crash
-regexp/range-bound-ffff_test: Crash
-regexp/ranges-and-escaped-hyphens_test: Crash
-regexp/regress-6-9-regexp_test: Crash
-regexp/regress-regexp-construct-result_test: Crash
-regexp/repeat-match-waldemar_test: Crash
-regexp/results-cache_test: Crash
 regexp/stack-overflow2_test: Crash
 regexp/stack-overflow_test: Crash
 regexp/zero-length-alternatives_test: Crash