Fix check_sources_and_headers.
diff --git a/gRPC-Core.podspec b/gRPC-Core.podspec
index bc500cc..e90e356 100644
--- a/gRPC-Core.podspec
+++ b/gRPC-Core.podspec
@@ -192,14 +192,11 @@
                       'src/core/lib/support/atomic.h',
                       'src/core/lib/support/atomic_with_atm.h',
                       'src/core/lib/support/atomic_with_std.h',
-                      'src/core/lib/support/debug_location.h',
                       'src/core/lib/support/env.h',
                       'src/core/lib/support/manual_constructor.h',
                       'src/core/lib/support/memory.h',
                       'src/core/lib/support/mpscq.h',
                       'src/core/lib/support/murmur_hash.h',
-                      'src/core/lib/support/reference_counted.h',
-                      'src/core/lib/support/reference_counted_ptr.h',
                       'src/core/lib/support/spinlock.h',
                       'src/core/lib/support/stack_lockfree.h',
                       'src/core/lib/support/string.h',
@@ -416,6 +413,9 @@
                       'src/core/lib/slice/slice_hash_table.h',
                       'src/core/lib/slice/slice_internal.h',
                       'src/core/lib/slice/slice_string_helpers.h',
+                      'src/core/lib/support/debug_location.h',
+                      'src/core/lib/support/reference_counted.h',
+                      'src/core/lib/support/reference_counted_ptr.h',
                       'src/core/lib/support/vector.h',
                       'src/core/lib/surface/alarm_internal.h',
                       'src/core/lib/surface/api_trace.h',
@@ -715,14 +715,11 @@
                               'src/core/lib/support/atomic.h',
                               'src/core/lib/support/atomic_with_atm.h',
                               'src/core/lib/support/atomic_with_std.h',
-                              'src/core/lib/support/debug_location.h',
                               'src/core/lib/support/env.h',
                               'src/core/lib/support/manual_constructor.h',
                               'src/core/lib/support/memory.h',
                               'src/core/lib/support/mpscq.h',
                               'src/core/lib/support/murmur_hash.h',
-                              'src/core/lib/support/reference_counted.h',
-                              'src/core/lib/support/reference_counted_ptr.h',
                               'src/core/lib/support/spinlock.h',
                               'src/core/lib/support/stack_lockfree.h',
                               'src/core/lib/support/string.h',
@@ -894,6 +891,9 @@
                               'src/core/lib/slice/slice_hash_table.h',
                               'src/core/lib/slice/slice_internal.h',
                               'src/core/lib/slice/slice_string_helpers.h',
+                              'src/core/lib/support/debug_location.h',
+                              'src/core/lib/support/reference_counted.h',
+                              'src/core/lib/support/reference_counted_ptr.h',
                               'src/core/lib/support/vector.h',
                               'src/core/lib/surface/alarm_internal.h',
                               'src/core/lib/surface/api_trace.h',