support resolving .packages in FE

tests/standalone/standalone.status

Index: tests/standalone/standalone.status
diff --git a/tests/standalone/standalone.status b/tests/standalone/standalone.status
index b0d3321450b301a2d56a3a882e551c4462294a98..f24f5b78a277031202741f615c59f2799c0e7a69 100644
--- a/tests/standalone/standalone.status
+++ b/tests/standalone/standalone.status
@@ -390,7 +390,6 @@ io/web_socket_error_test: Skip # Flaky
 io/web_socket_ping_test: Skip # Flaky.
 io/web_socket_test: Skip # Flaky.
 no_support_debugger_test: Skip # kernel-service snapshot not compatible with flag disabled
-package/scenarios/invalid/*: DartkCrash # Issue 30110
 
 regress_29350_test: MissingCompileTimeError
 assert_test: RuntimeError
@@ -404,7 +403,6 @@ package/package_test: CompileTimeError
 package/scenarios/invalid/invalid_utf8_test: CompileTimeError
 package/scenarios/invalid/non_existent_packages_file_test: CompileTimeError
 package/scenarios/invalid/same_package_twice_test: CompileTimeError
-package/scenarios/packages_dir_only/packages_dir_only_test: CompileTimeError
 
 [ $compiler == dartkp ]
 causal_async_stack_test: Fail