Issue 3800. Calling an undefined constructor via new is a warning, not an error

tests/language/language.status

Index: tests/language/language.status
diff --git a/tests/language/language.status b/tests/language/language.status
index b3e41fb5017bf0ee6c774e9fab5c0658cd683a42..fdae296adb5b94aea012cd5f385c84d7707f241e 100644
--- a/tests/language/language.status
+++ b/tests/language/language.status
@@ -69,9 +69,9 @@ body_less_constructor_wrong_arg_negative_test: Fail  # Runtime only test, rewrit
 call_operator_test: Pass # Issue 1355
 cascade_test: Pass,Fail # Issue 3729  Some cases pass, but for the wrong reason
 char_escape_test: Pass # Issue 1654
-class_literal_test/04 : Skip # language change 1031
-class_literal_test/09 : Skip # language change 1031
-class_literal_test/16 : Skip # language change 1031
+class_literal_test/04 : Fail # language change 1031
+class_literal_test/09 : Fail # language change 1031
+class_literal_test/16 : Fail # language change 1031
 closure_call_wrong_argument_count_negative_test: Fail # Runtime only test, rewrite as multitest
 constructor3_negative_test: Fail # Runtime only test, rewrite as multitest
 constructor_call_wrong_argument_count_negative_test: Fail # Runtime only test, rewrite as multitest
@@ -82,6 +82,7 @@ field_method4_negative_test: Fail  # Runtime only test, rewrite as multitest
 final_syntax_test/*: Skip  # can't handle base case
 getter_no_setter_test/01: Fail # Fails to detect compile-time error.
 instance_call_wrong_argument_count_negative_test: Fail # Runtime only test, rewrite as multitest
+interface_factory1_negative_test: Fail # language change 1031
 is_not_class2_negative_test: Fail #  Runtime only test, rewrite as multitest
 library2_negative_test: Fail # still a valid test? Issue 3649
 library4_negative_test: Fail # still a valid test? Issue 3530
@@ -90,11 +91,18 @@ list_literal4_test: Fail       # Issue 1343
 map_literal4_test: Fail        # Issue 1343
 named_parameters_negative_test: Fail # Runtime only test, rewrite as multitest
 named_parameters_with_object_property_names_test: Fail # Issue 2137
+new_expression_type_args_frog_test/01: Fail # language change 1031
+new_expression_type_args_frog_test/02: Fail # language change 1031
 no_such_method_negative_test: Fail # Runtime only test, rewrite as multiteste
 override_field_test/03: Fail # still a valid test? Issue 3894
 override_field_test/04: Fail # still a valid test? Issue 3656
-prefix1_negative_test : Skip # language change 1031
-prefix5_negative_test : Skip # language change 1031
+prefix1_negative_test : Fail # language change 1031
+prefix4_negative_test : Fail # language change 1031
+prefix5_negative_test : Fail # language change 1031
+prefix8_negative_test : Fail # language change 1031
+prefix9_negative_test : Fail # language change 1031
+prefix10_negative_test : Fail # language change 1031
+prefix11_negative_test : Fail # language change 1031
 private_member3_negative_test: Fail # Runtime only test?  rewrite as multitest
 pseudo_kw_illegal_test/08: Fail # Issue 356
 pseudo_kw_illegal_test/10: Fail # Issue 356
@@ -106,6 +114,8 @@ throw7_negative_test: Fail     # Issue 3654
 # try_catch_syntax_test/08: Fail # Issue 3795
 
 type_variable_bounds_test/00: Fail # issue 3079
+type_variable_bounds_test/07: Fail # language change 1031
+type_variable_static_context_negative_test: Fail # language change 1031
 
 #
 # Add new dartc annotations above in alphabetical order