Fix an unexpected duplicated instance of the SwiftSupport libraries for app clip targets. (#2757)

This applies for cases where deployment target is below iOS 15.

Cherry pick:
[adf76de](adf76de)

---------

Co-authored-by: Nicholas Levin <[email protected]>

Author: adincebic

apple/internal/ios_rules.bzl

@@ -755,7 +755,6 @@ def _ios_app_clip_impl(ctx):
             bundle_dylibs = True,
             dependency_targets = embeddable_targets,
             label_name = label.name,
-            package_swift_support_if_needed = True,
             platform_prerequisites = platform_prerequisites,
         ),
     ]

test/starlark_tests/ios_app_clip_tests.bzl

@@ -160,6 +160,22 @@ def ios_app_clip_test_suite(name):
         tags = [name],
     )
 
+    # Verify that Swift dylibs are packaged with the application, when the application uses Swift.
+    archive_contents_test(
+        name = "{}_device_swift_dylibs_present".format(name),
+        build_type = "device",
+        target_under_test = "//test/starlark_tests/targets_under_test/ios:app_with_app_clip_with_swift_support",
+        contains = [
+            "$ARCHIVE_ROOT/SwiftSupport/iphoneos/libswift_Concurrency.dylib",
+            "$BUNDLE_ROOT/AppClips/app_clip_with_swift_support.app/Frameworks/libswift_Concurrency.dylib",
+            "$BUNDLE_ROOT/Frameworks/libswift_Concurrency.dylib",
+        ],
+        not_contains = [
+            "$BUNDLE_ROOT/AppClips/SwiftSupport/iphoneos/libswift_Concurrency.dylib",
+        ],
+        tags = [name],
+    )
+
     # Test dSYM binaries and linkmaps from framework embedded via 'data' are propagated correctly
     # at the top-level ios_extension rule, and present through the 'dsysms' and 'linkmaps' output
     # groups.

test/starlark_tests/resources/BUILD

@@ -1394,6 +1394,12 @@ swift_library(
     tags = common.fixture_tags,
 )
 
+swift_library(
+    name = "swift_concurrency_main_lib",
+    srcs = ["concurrency_main.swift"],
+    tags = common.fixture_tags,
+)
+
 # --------------------------------------------------------------------------------
 # C/C++ rules with data
 

test/starlark_tests/resources/concurrency_main.swift

@@ -0,0 +1,21 @@
+// Copyright 2025 The Bazel Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+
+@main
+struct App {
+    static func main() async throws {
+        try await Task.sleep(nanoseconds: 1)
+    }
+}

test/starlark_tests/targets_under_test/ios/BUILD

@@ -1057,6 +1057,39 @@ ios_app_clip(
     ],
 )
 
+ios_application(
+    name = "app_with_app_clip_with_swift_support",
+    app_clips = [":app_clip_with_swift_support"],
+    bundle_id = "com.google.example",
+    entitlements = "//test/starlark_tests/resources:entitlements.plist",
+    families = ["iphone"],
+    infoplists = [
+        "//test/starlark_tests/resources:Info.plist",
+    ],
+    minimum_os_version = common.min_os_ios.appclip_support,
+    provisioning_profile = "//test/testdata/provisioning:integration_testing_ios.mobileprovision",
+    tags = common.fixture_tags,
+    deps = [
+        "//test/starlark_tests/resources:swift_concurrency_main_lib",
+    ],
+)
+
+ios_app_clip(
+    name = "app_clip_with_swift_support",
+    bundle_id = "com.google.example.clip",
+    entitlements = "//test/starlark_tests/resources:entitlements.plist",
+    families = ["iphone"],
+    infoplists = [
+        "//test/starlark_tests/resources:Info.plist",
+    ],
+    minimum_os_version = common.min_os_ios.appclip_support,
+    provisioning_profile = "//test/testdata/provisioning:integration_testing_ios.mobileprovision",
+    tags = common.fixture_tags,
+    deps = [
+        "//test/starlark_tests/resources:swift_concurrency_main_lib",
+    ],
+)
+
 # ---------------------------------------------------------------------------------------
 
 ios_application(