[sprout] Add ReactForgetFeatureFlag

Author: gsathya

compiler/packages/sprout/src/ReactForgetFeatureFlag.ts

@@ -0,0 +1,3 @@
+export function isForgetEnabled_Fixtures(): boolean {
+  return true;
+}

compiler/packages/sprout/src/runner-worker.ts

@@ -107,6 +107,8 @@ function transformAST(
                     // rewrite to use relative import
                     if (arg.value === "shared-runtime") {
                       arg.value = "./shared-runtime";
+                    } else if (arg.value === "ReactForgetFeatureFlag") {
+                      arg.value = "./ReactForgetFeatureFlag";
                     }
                   }
                 }