add batch test run line

Author: wsmoses

enzyme/test/MLIR/Batch/cachefunction.mlir

@@ -1,3 +1,5 @@
+// RUN: %eopt -enzyme-batch %s | FileCheck %s
+
 module {
   func.func private @f(%arg0: tensor<16xf32>, %arg1: tensor<16xf32>) -> tensor<16xf32> {
     return %arg0 : tensor<16xf32>
@@ -16,4 +18,4 @@ module {
 // CHECK-NEXT:   }
 // CHECK:   func.func private @batched_f(%[[arg0:.+]]: tensor<4x16xf32>, %[[arg1:.+]]: tensor<4x16xf32>) -> tensor<4x16xf32> {
 // CHECK-NEXT:     return %[[arg0]] : tensor<4x16xf32>
-// CHECK-NEXT:   }
+// CHECK-NEXT:   }