dart2js kernel: minimal recognition of external native methods

tests/language_2/language_2_dart2js.status

Index: tests/language_2/language_2_dart2js.status
diff --git a/tests/language_2/language_2_dart2js.status b/tests/language_2/language_2_dart2js.status
index 6258ed427bc2ce3ea2359a2a0d404a51866b3042..6d41b8e73f911e9afec4b0354d4f4c203ebfc66e 100644
--- a/tests/language_2/language_2_dart2js.status
+++ b/tests/language_2/language_2_dart2js.status
@@ -401,7 +401,7 @@ closure_in_field_initializer_test: Crash
 closure_in_initializer2_test: Crash
 closure_in_initializer_test: Crash
 closure_internals_test: Crash
-closure_parameter_types_test: Crash
+closure_parameter_types_test: RuntimeError
 closure_self_reference_test: Crash
 closure_shared_state_test: RuntimeError
 closure_type_variable_test: Crash # NoSuchMethodError: The getter 'typeArguments' was called on null.
@@ -515,7 +515,6 @@ function_type/function_type9_test: Crash
 generic_constructor_mixin2_test: Crash
 generic_constructor_mixin3_test: Crash
 generic_constructor_mixin_test: Crash
-closure_parameter_types_test: RuntimeError
 regress_30339_test: Crash
 typevariable_substitution2_test/02: RuntimeError
 
@@ -736,7 +735,7 @@ closure_in_field_initializer_test: Crash
 closure_in_initializer2_test: Crash
 closure_in_initializer_test: Crash
 closure_internals_test: Crash
-closure_parameter_types_test: Crash
+closure_parameter_types_test: RuntimeError
 closure_self_reference_test: Crash
 closure_shared_state_test: RuntimeError
 closure_type_variable_test: Crash # NoSuchMethodError: The getter 'typeArguments' was called on null.
@@ -850,7 +849,6 @@ function_type/function_type9_test: Crash
 generic_constructor_mixin2_test: Crash
 generic_constructor_mixin3_test: Crash
 generic_constructor_mixin_test: Crash
-closure_parameter_types_test: RuntimeError
 regress_30339_test: Crash
 typevariable_substitution2_test/02: RuntimeError