make sure cflags is forwarded in the ios_app executable template

testing/test.gni

 # Copyright 2015 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # ==============================================================================
 # TEST SETUP
 # ==============================================================================
 
 # Define a test as an executable (or apk on Android) with the "testonly" flag
 # set.
@@ skipping 92 matching lines @@
       deps = [
         ":$library_name",
         ":$apk_name",
       ]
     }
   } else if (is_ios) {
     if (is_ios) {
       import("//build/config/ios/rules.gni")
     }
 
-    target__sources_name = "${target_name}__sources"
-    if (defined(invoker.sources)) {
-      source_set(target__sources_name) {
-        sources = invoker.sources
-        testonly = true
-
-        configs = []  # Prevent list overwriting warning.
-        configs += invoker.configs
-
-        forward_variables_from(invoker,
-                               [
-                                 "cflags",
-                                 "cflags_c",
-                                 "cflags_cc",
-                                 "cflags_objc",
-                                 "cflags_objcc",
-                                 "data",
-                                 "data_deps",
-                                 "datadeps",
-                                 "defines",
-                                 "deps",
-                                 "include_dirs",
-                                 "includes",
-                               ])
-      }
-    }
-
     ios_app(target_name) {
       # TODO(GYP): Make this configurable and only provide a default
       # that can be overridden.
       info_plist = "//testing/gtest_ios/unittest-Info.plist"
       app_name = target_name
       entitlements_path = "//testing/gtest_ios"
       code_signing_identity = ""
       testonly = true
 
       # See above call.
       set_sources_assignment_filter([])
 
       forward_variables_from(invoker,
                              [
                                "all_dependent_configs",
                                "allow_circular_includes_from",
                                "cflags",
                                "cflags_c",
                                "cflags_cc",
                                "cflags_objc",
                                "cflags_objcc",
                                "check_includes",
+                               "configs",
+                               "data",
+                               "data_deps",
+                               "defines",
                                "forward_dependent_configs_from",
+                               "include_dirs",
                                "ldflags",
                                "libs",
                                "output_extension",
                                "output_name",
                                "public",
                                "public_configs",
                                "public_deps",
+                               "sources",
                                "visibility",
                              ])
 
       if (defined(invoker.deps)) {
         deps = invoker.deps
       } else {
         deps = []
       }
       deps += [
         # All shared libraries must have the sanitizer deps to properly link in
         # asan mode (this target will be empty in other cases).
         "//build/config/sanitizers:deps",
       ]
-
-      if (defined(invoker.sources)) {
-        deps += [ ":${target__sources_name}" ]
-      }
     }
   } else {
     executable(target_name) {
       forward_variables_from(invoker, "*")
 
       testonly = true
 
       if (!defined(invoker.deps)) {
         deps = []
       }
       deps += [
         # All shared libraries must have the sanitizer deps to properly link in
         # asan mode (this target will be empty in other cases).
         "//build/config/sanitizers:deps",
 
         # Give tests the default manifest on Windows (a no-op elsewhere).
         "//build/win:default_exe_manifest",
       ]
     }
   }
 }