Allow for enabling feature flag on a per test basis

Summary: This diff follows up on a comment in the previous diff to allow the tests to turn on or off exec time resolvers on a per test basis by adding a comment to the test.

Reviewed By: lynnshaoyu

Differential Revision: D64769717

fbshipit-source-id: d96c06a21e9bbe4a6a4fa7996f9e4b2652314400

compiler/crates/relay-codegen/tests/client_edges.rs

@@ -38,9 +38,12 @@ pub async fn transform_fixture(fixture: &Fixture<'_>) -> Result<String, String>
         } else {
             FeatureFlag::Disabled
         };
+        let enable_exec_time_resolvers_directive = fixture
+            .content
+            .contains("# enable-exec-time-resolvers-directive");
         let feature_flags = Arc::new(FeatureFlags {
             relay_resolver_enable_interface_output_type,
-            enable_exec_time_resolvers_directive: true,
+            enable_exec_time_resolvers_directive,
             ..Default::default()
         });
         let project_config: ProjectConfig = ProjectConfig {

compiler/crates/relay-codegen/tests/client_edges/fixtures/client-edge-exec-time-resolver.expected

@@ -1,4 +1,6 @@
 ==================================== INPUT ====================================
+# enable-exec-time-resolvers-directive
+
 query Foo @exec_time_resolvers {
   me {
     pet {

compiler/crates/relay-codegen/tests/client_edges/fixtures/client-edge-exec-time-resolver.graphql

@@ -1,3 +1,5 @@
+# enable-exec-time-resolvers-directive
+
 query Foo @exec_time_resolvers {
   me {
     pet {