Handle metadata with type literals or qualified identifiers.

tests/lib/lib.status

Index: tests/lib/lib.status
diff --git a/tests/lib/lib.status b/tests/lib/lib.status
index a8ed49b0bbc241ea5814a613489b08fe25c84188..3ad5b0d1223cd8746027bbf7cf40dc48b71afc02 100644
--- a/tests/lib/lib.status
+++ b/tests/lib/lib.status
@@ -49,6 +49,7 @@ mirrors/invoke_throws_test: RuntimeError # Issue 11954
 mirrors/library_declarations_test/none: RuntimeError # Issue 13439, Issue 13733
 mirrors/library_metadata2_test/01: CompileTimeError # Issue 13633
 mirrors/library_uri_io_test: Skip # Not intended for dart2js as it uses dart:io.
+mirrors/metadata_allowed_values_test/04: MissingCompileTimeError
 mirrors/method_mirror_name_test: RuntimeError # Issue 6335
 mirrors/method_mirror_properties_test: RuntimeError # Issue 11861
 mirrors/method_mirror_returntype_test : RuntimeError # Issue 11928
@@ -218,6 +219,7 @@ mirrors/generic_interface_test/none: Fail # Inexpressible in multitest
 mirrors/typevariable_mirror_metadata_test/none: Fail # Issue 13093
 mirrors/redirecting_factory_test/none: Fail # Issue 14285
 mirrors/type_variable_owner_test/none: Fail # Issue 14356
+mirrors/metadata_allowed_values_test/none: Fail
 
 [ $compiler == dart2analyzer ]
 mirrors/typedef_test/none: Fail # Issue 13093
@@ -232,6 +234,7 @@ mirrors/generic_interface_test/none: Fail # Inexpressible in multitest
 mirrors/typevariable_mirror_metadata_test/none: Fail # Issue 13093
 mirrors/redirecting_factory_test/none: Fail # Issue 14285
 mirrors/type_variable_owner_test/none: Fail # Issue 14356
+mirrors/metadata_allowed_values_test/none: Fail
 
 [ $compiler == none && $runtime == dartium ]
 async/schedule_microtask5_test: Pass, Timeout # Issue 13719: Please triage this failure.