Enable strong-mode test suite for dartk.

tests/corelib_strong/corelib_strong.status

Index: tests/corelib_strong/corelib_strong.status
diff --git a/tests/corelib_strong/corelib_strong.status b/tests/corelib_strong/corelib_strong.status
new file mode 100644
index 0000000000000000000000000000000000000000..fb98cbabb4ea80bf03a8680301f7c9f1c1019840
--- /dev/null
+++ b/tests/corelib_strong/corelib_strong.status
@@ -0,0 +1,56 @@
+# Copyright (c) 2016, 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.
+
+# Skip entire suite if not running in strong mode.
+[ $strong == false ]
+*: SkipByDesign
+
+# Skip tests that are not yet strong-mode clean.
+[ $strong == true ]
+big_integer_arith_vm_test: Skip
+bool_from_environment2_test: Skip
+core_runtime_types_test: Skip
+data_resource_test: Skip
+duration2_test: Skip
+error_stack_trace_test: Skip
+file_resource_test: Skip
+from_environment_const_type_test: Skip
+from_environment_const_type_undefined_test: Skip
+growable_list_test: Skip
+hash_set_type_check_test: Skip
+http_resource_test: Skip
+int_from_environment3_test: Skip
+iterable_contains2_test: Skip
+iterable_element_at_test: Skip
+iterable_fold_test: Skip
+iterable_mapping_test: Skip
+iterable_reduce_test: Skip
+iterable_to_list_test: Skip
+iterable_to_set_test: Skip
+linked_hash_map_from_iterable_test: Skip
+list_contains_argument_order_test: Skip
+list_filled_type_argument_test: Skip
+list_index_of2_test: Skip
+list_test: Skip
+list_unmodifiable_test: Skip
+map_test: Skip
+num_clamp_test: Skip
+package_resource_test: Skip
+print_test: Skip
+queue_test: Skip
+regexp/global_test: Skip
+regexp/regexp_test: Skip
+regexp/regress-regexp-codeflush_test: Skip
+regexp/standalones_test: Skip
+splay_tree_test: Skip
+string_base_vm_test: Skip
+string_from_environment3_test: Skip
+string_from_list_test: Skip
+string_replace_test: Skip
+string_test: Skip
+symbol_operator_test: Skip
+symbol_reserved_word_test: Skip
+symbol_test: Skip
+uri_path_test: Skip
+uri_query_test: Skip