Let third-party pods resolve the C++ stable API guard headers

Summary:
`install_modules_dependencies` is the helper every third-party New Architecture library calls from its own podspec, and `update_search_paths` covers the user project and the pod targets that don't go through it. Neither knew about `React-cxxstableapi`.

React Native's public C++ headers are starting to include the shared guard header `<react/cxxstableapi/UmbrellaGuard.h>`. The include is unconditional, so a third-party pod that includes any guarded React Native header has to be able to resolve it. Today it can't: in the default static-library mode `$(PODS_ROOT)/Headers/Public/React-cxxstableapi` is missing from the search path, and under `use_frameworks!` the `React_cxxstableapi.framework/Headers` entry is missing.

Declare the dependency and add the matching framework header search path in both places.

Changelog:
[iOS][Added] - Add a `React-cxxstableapi` dependency to third-party New Architecture pods so they can resolve React Native's C++ API guard headers

Differential Revision: D110052811

Author: coado

packages/react-native/scripts/cocoapods/__tests__/new_architecture-test.rb

@@ -165,6 +165,7 @@ def test_installModulesDependencies_whenNewArchEnabledAndNewArchAndNoSearchPaths
                 { :dependency_name => "React-rendererdebug" },
                 { :dependency_name => "React-jsi" },
                 { :dependency_name => "React-renderercss" },
+                { :dependency_name => "React-cxxstableapi" },
                 { :dependency_name => "hermes-engine" },
                 { :dependency_name => "glog" },
                 { :dependency_name => "boost" },
@@ -216,6 +217,7 @@ def test_installModulesDependencies_whenNewArchDisabledAndSearchPathsAndCompiler
                 { :dependency_name => "React-rendererdebug" },
                 { :dependency_name => "React-jsi" },
                 { :dependency_name => "React-renderercss" },
+                { :dependency_name => "React-cxxstableapi" },
                 { :dependency_name => "hermes-engine" },
                 { :dependency_name => "glog" },
                 { :dependency_name => "boost" },

packages/react-native/scripts/cocoapods/__tests__/utils-test.rb

@@ -632,7 +632,7 @@ def test_updateSearchPaths_whenUseFrameworks_addsSearchPaths
         # Assert
         user_project_mock.build_configurations.each do |config|
             received_search_path = config.build_settings["HEADER_SEARCH_PATHS"]
-            expected_search_path = "$(inherited) ${PODS_CONFIGURATION_BUILD_DIR}/ReactCommon/ReactCommon.framework/Headers ${PODS_CONFIGURATION_BUILD_DIR}/ReactCommon/ReactCommon.framework/Headers/react/nativemodule/core ${PODS_CONFIGURATION_BUILD_DIR}/React-runtimeexecutor/React_runtimeexecutor.framework/Headers ${PODS_CONFIGURATION_BUILD_DIR}/React-runtimeexecutor/React_runtimeexecutor.framework/Headers/platform/ios ${PODS_CONFIGURATION_BUILD_DIR}/ReactCommon-Samples/ReactCommon_Samples.framework/Headers ${PODS_CONFIGURATION_BUILD_DIR}/ReactCommon-Samples/ReactCommon_Samples.framework/Headers/platform/ios ${PODS_CONFIGURATION_BUILD_DIR}/React-Fabric/React_Fabric.framework/Headers/react/renderer/components/view/platform/cxx ${PODS_CONFIGURATION_BUILD_DIR}/React-NativeModulesApple/React_NativeModulesApple.framework/Headers ${PODS_CONFIGURATION_BUILD_DIR}/React-graphics/React_graphics.framework/Headers ${PODS_CONFIGURATION_BUILD_DIR}/React-graphics/React_graphics.framework/Headers/react/renderer/graphics/platform/ios ${PODS_CONFIGURATION_BUILD_DIR}/React-featureflags/React_featureflags.framework/Headers ${PODS_CONFIGURATION_BUILD_DIR}/React-renderercss/React_renderercss.framework/Headers"
+            expected_search_path = "$(inherited) ${PODS_CONFIGURATION_BUILD_DIR}/ReactCommon/ReactCommon.framework/Headers ${PODS_CONFIGURATION_BUILD_DIR}/ReactCommon/ReactCommon.framework/Headers/react/nativemodule/core ${PODS_CONFIGURATION_BUILD_DIR}/React-runtimeexecutor/React_runtimeexecutor.framework/Headers ${PODS_CONFIGURATION_BUILD_DIR}/React-runtimeexecutor/React_runtimeexecutor.framework/Headers/platform/ios ${PODS_CONFIGURATION_BUILD_DIR}/ReactCommon-Samples/ReactCommon_Samples.framework/Headers ${PODS_CONFIGURATION_BUILD_DIR}/ReactCommon-Samples/ReactCommon_Samples.framework/Headers/platform/ios ${PODS_CONFIGURATION_BUILD_DIR}/React-Fabric/React_Fabric.framework/Headers/react/renderer/components/view/platform/cxx ${PODS_CONFIGURATION_BUILD_DIR}/React-NativeModulesApple/React_NativeModulesApple.framework/Headers ${PODS_CONFIGURATION_BUILD_DIR}/React-graphics/React_graphics.framework/Headers ${PODS_CONFIGURATION_BUILD_DIR}/React-graphics/React_graphics.framework/Headers/react/renderer/graphics/platform/ios ${PODS_CONFIGURATION_BUILD_DIR}/React-featureflags/React_featureflags.framework/Headers ${PODS_CONFIGURATION_BUILD_DIR}/React-renderercss/React_renderercss.framework/Headers ${PODS_CONFIGURATION_BUILD_DIR}/React-cxxstableapi/React_cxxstableapi.framework/Headers"
             assert_equal(expected_search_path, received_search_path)
         end
 

packages/react-native/scripts/cocoapods/new_architecture.rb

@@ -96,6 +96,7 @@ def self.install_modules_dependencies(spec, new_arch_enabled, folly_version = He
                 .concat(ReactNativePodsUtils.create_header_search_path_for_frameworks("PODS_CONFIGURATION_BUILD_DIR", "React-ImageManager", "React_ImageManager", []))
                 .concat(ReactNativePodsUtils.create_header_search_path_for_frameworks("PODS_CONFIGURATION_BUILD_DIR", "React-rendererdebug", "React_rendererdebug", []))
                 .concat(ReactNativePodsUtils.create_header_search_path_for_frameworks("PODS_CONFIGURATION_BUILD_DIR", "React-renderercss", "React_renderercss", []))
+                .concat(ReactNativePodsUtils.create_header_search_path_for_frameworks("PODS_CONFIGURATION_BUILD_DIR", "React-cxxstableapi", "React_cxxstableapi", []))
                 .each { |search_path|
                     header_search_paths << "\"#{search_path}\""
                 }
@@ -132,6 +133,7 @@ def self.install_modules_dependencies(spec, new_arch_enabled, folly_version = He
         spec.dependency "React-rendererdebug"
         spec.dependency 'React-jsi'
         spec.dependency 'React-renderercss'
+        spec.dependency 'React-cxxstableapi'
 
         depend_on_js_engine(spec)
         add_rn_third_party_dependencies(spec)

packages/react-native/scripts/cocoapods/utils.rb

@@ -362,6 +362,7 @@ def self.update_search_paths(installer)
                     .concat(ReactNativePodsUtils.create_header_search_path_for_frameworks("PODS_CONFIGURATION_BUILD_DIR", "React-graphics", "React_graphics", ["react/renderer/graphics/platform/ios"]))
                     .concat(ReactNativePodsUtils.create_header_search_path_for_frameworks("PODS_CONFIGURATION_BUILD_DIR", "React-featureflags", "React_featureflags", []))
                     .concat(ReactNativePodsUtils.create_header_search_path_for_frameworks("PODS_CONFIGURATION_BUILD_DIR", "React-renderercss", "React_renderercss", []))
+                    .concat(ReactNativePodsUtils.create_header_search_path_for_frameworks("PODS_CONFIGURATION_BUILD_DIR", "React-cxxstableapi", "React_cxxstableapi", []))
                     .each{ |search_path|
                         header_search_paths = self.add_search_path_if_not_included(header_search_paths, search_path)
                     }