rename all test core files to cc and a lot of C++ style conversions
diff --git a/gRPC-Core.podspec b/gRPC-Core.podspec
index a9b451e..2074323 100644
--- a/gRPC-Core.podspec
+++ b/gRPC-Core.podspec
@@ -1001,17 +1001,17 @@
     ss.dependency "#{s.name}/Interface", version
     ss.dependency "#{s.name}/Implementation", version
 
-    ss.source_files = 'test/core/end2end/cq_verifier.{c,h}',
-                      'test/core/end2end/end2end_tests.{c,h}',
-                      'test/core/end2end/end2end_test_utils.c',
-                      'test/core/end2end/tests/*.{c,h}',
+    ss.source_files = 'test/core/end2end/cq_verifier.{cc,h}',
+                      'test/core/end2end/end2end_tests.{cc,h}',
+                      'test/core/end2end/end2end_test_utils.cc',
+                      'test/core/end2end/tests/*.{cc,h}',
                       'test/core/end2end/fixtures/*.h',
-                      'test/core/end2end/data/*.{c,h}',
-                      'test/core/util/debugger_macros.{c,h}',
-                      'test/core/util/test_config.{c,h}',
+                      'test/core/end2end/data/*.{cc,h}',
+                      'test/core/util/debugger_macros.{cc,h}',
+                      'test/core/util/test_config.{cc,h}',
                       'test/core/util/port.h',
-                      'test/core/util/port.c',
-                      'test/core/util/port_server_client.{c,h}'
+                      'test/core/util/port.cc',
+                      'test/core/util/port_server_client.{cc,h}'
   end
 
   # TODO (mxyan): Instead of this hack, add include path "third_party" to C core's include path?