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 3aadc42a3e4c3bbccedc2c0040c07f35d99f888f..e0f4fc05c06bb8616fe5386c1e11e15c5a512329 100644
--- a/tests/lib/lib.status
+++ b/tests/lib/lib.status
@@ -48,6 +48,9 @@ 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 # Issue 14548
+mirrors/metadata_allowed_values_test/10: MissingCompileTimeError # Issue 14548
+mirrors/metadata_allowed_values_test/11: MissingCompileTimeError # Issue 14548
 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 +221,7 @@ mirrors/generic_f_bounded_mixin_application_test: Fail # Issue 14116
 mirrors/generic_interface_test/none: Fail # Inexpressible in multitest
 mirrors/typevariable_mirror_metadata_test/none: Fail # Issue 13093
 mirrors/type_variable_owner_test/none: Fail # Issue 14356
+mirrors/metadata_allowed_values_test/none: CompileTimeError # Issue 14549
 
 [ $compiler == dart2analyzer ]
 mirrors/typedef_test/none: Fail # Issue 13093
@@ -231,6 +235,7 @@ mirrors/generic_f_bounded_mixin_application_test: Fail # Issue 14116
 mirrors/generic_interface_test/none: Fail # Inexpressible in multitest
 mirrors/typevariable_mirror_metadata_test/none: Fail # Issue 13093
 mirrors/type_variable_owner_test/none: Fail # Issue 14356
+mirrors/metadata_allowed_values_test/none: CompileTimeError # Issue 14549
 
 [ $compiler == none && $runtime == dartium ]
 async/schedule_microtask5_test: Pass, Timeout # Issue 13719: Please triage this failure.