added basic filecheck for irdl translation

Author: hhkit

mlir/test/lib/Dialect/TestIRDLToCpp/test_irdl_to_cpp.irdl.mlir

@@ -1,19 +1,32 @@
-// RUN: mlir-irdl-to-cpp %s
+// RUN: mlir-irdl-to-cpp %s | FileCheck %s
 
+// CHECK: class TestIrdlToCpp
 irdl.dialect @test_irdl_to_cpp {
+    
+    // CHECK: class FooType
     irdl.type @foo
 
+    // CHECK: class BarOp
+    // CHECK: ::mlir::Value getRes()
     irdl.operation @bar {
         %0 = irdl.any
         irdl.results(res: %0)
     }
 
+    // CHECK: class BeefOp
+    // CHECK: ::mlir::Value getLhs()
+    // CHECK: ::mlir::Value getRhs()
+    // CHECK: ::mlir::Value getRes()
     irdl.operation @beef {
         %0 = irdl.any
         irdl.operands(lhs: %0, rhs: %0)
         irdl.results(res: %0)
     }
 
+    // CHECK: class HashOp
+    // CHECK: ::mlir::Value getLhs()
+    // CHECK: ::mlir::Value getRhs()
+    // CHECK: ::mlir::Value getRes()
     irdl.operation @hash {
         %0 = irdl.any
         irdl.operands(lhs: %0, rhs: %0)