add config for Coverage CI

Author: zyfncg

paddle/fluid/framework/custom_operator.cc

@@ -519,6 +519,7 @@ void RegisterOperatorWithMetaInfo(
   auto op_name = OpMetaInfoHelper::GetOpName(base_op_meta);
 
   if (OpInfoMap::Instance().Has(op_name)) {
+    LOG(WARNING) << "Operator (" << op_name << ")has been registered.";
     return;
   }
 

python/paddle/fluid/tests/custom_op/test_custom_relu_op_jit.py

@@ -132,7 +132,12 @@ def test_exception(self):
 
     def test_load_multiple_module(self):
         custom_module = load(
-            name='custom_conj_jit', sources=['custom_conj_op.cc'])
+            name='custom_conj_jit',
+            sources=['custom_conj_op.cc'],
+            extra_include_paths=paddle_includes,  # add for Coverage CI
+            extra_cxx_cflags=extra_cc_args,  # test for cc flags
+            extra_cuda_cflags=extra_nvcc_args,  # test for nvcc flags
+            verbose=True)
         custom_conj = custom_module.custom_conj
         self.assertIsNotNone(custom_conj)