split iterator into its own file
diff --git a/tools/run_tests/sources_and_headers.json b/tools/run_tests/sources_and_headers.json
index 0493e06..1b0c373 100644
--- a/tools/run_tests/sources_and_headers.json
+++ b/tools/run_tests/sources_and_headers.json
@@ -1059,6 +1059,19 @@
     ], 
     "headers": [], 
     "language": "c++", 
+    "name": "auth_property_iterator_test", 
+    "src": [
+      "test/cpp/common/auth_property_iterator_test.cc"
+    ]
+  }, 
+  {
+    "deps": [
+      "gpr", 
+      "grpc", 
+      "grpc++"
+    ], 
+    "headers": [], 
+    "language": "c++", 
     "name": "channel_arguments_test", 
     "src": [
       "test/cpp/client/channel_arguments_test.cc"
@@ -9491,6 +9504,7 @@
       "include/grpc++/async_generic_service.h", 
       "include/grpc++/async_unary_call.h", 
       "include/grpc++/auth_context.h", 
+      "include/grpc++/auth_property_iterator.h", 
       "include/grpc++/byte_buffer.h", 
       "include/grpc++/channel_arguments.h", 
       "include/grpc++/channel_interface.h", 
@@ -9539,6 +9553,7 @@
       "include/grpc++/async_generic_service.h", 
       "include/grpc++/async_unary_call.h", 
       "include/grpc++/auth_context.h", 
+      "include/grpc++/auth_property_iterator.h", 
       "include/grpc++/byte_buffer.h", 
       "include/grpc++/channel_arguments.h", 
       "include/grpc++/channel_interface.h", 
@@ -9586,6 +9601,7 @@
       "src/cpp/client/secure_channel_arguments.cc", 
       "src/cpp/client/secure_credentials.cc", 
       "src/cpp/client/secure_credentials.h", 
+      "src/cpp/common/auth_property_iterator.cc", 
       "src/cpp/common/call.cc", 
       "src/cpp/common/completion_queue.cc", 
       "src/cpp/common/create_auth_context.h", 
@@ -9662,6 +9678,7 @@
       "include/grpc++/async_generic_service.h", 
       "include/grpc++/async_unary_call.h", 
       "include/grpc++/auth_context.h", 
+      "include/grpc++/auth_property_iterator.h", 
       "include/grpc++/byte_buffer.h", 
       "include/grpc++/channel_arguments.h", 
       "include/grpc++/channel_interface.h", 
@@ -9707,6 +9724,7 @@
       "include/grpc++/async_generic_service.h", 
       "include/grpc++/async_unary_call.h", 
       "include/grpc++/auth_context.h", 
+      "include/grpc++/auth_property_iterator.h", 
       "include/grpc++/byte_buffer.h", 
       "include/grpc++/channel_arguments.h", 
       "include/grpc++/channel_interface.h",