Bug: Missing clangs arg count

Description

A user reported an issue where they were on one commit using Xcode 15.1 where things were working correctly. They switched to a commit which uses Xcode 15.0.1 and run into generation errors during project generation:

Generating ".cashcli/Projects/CashApp.xcodeproj"
Starting local Bazel server and connecting to it...
INFO: Invocation ID: fda96df3-b7f4-47d2-96c0-3eeca4eae007
INFO: Analyzed target @rules_xcodeproj~1.15.0~internal~rules_xcodeproj_generated//generator/.cashcli/Projects/CashApp:CashApp (799 packages loaded, 53174 targets configured).
INFO: Found 1 target...
ERROR: Code/SystemResources/AppDependencies/BUILD.bazel:12:15: Generating bazel-out/ios-arm64-min14.0-applebin_ios-ios_arm64-dbg-ST-1085b1e95571/bin/Code/SystemResources/AppDependencies/AppDependencies.rules_xcodeproj.build_settings failed: (Exit 1): universal_target_build_settings failed: error executing command (from target //Code/SystemResources/AppDependencies:AppDependencies) 
  (cd /private/var/tmp/_bazel_<bradfol>/907fcb5025b8b52c1255ae7b70e7bf3a/rules_xcodeproj.noindex/build_output_base/execroot/_main && \
  exec env - \
  bazel-out/darwin_arm64-opt-exec-2B5CBBC6-ST-477482371507/bin/external/rules_xcodeproj~1.15.0/tools/generators/target_build_settings/universal_target_build_settings 1 bazel-out/ios-arm64-min14.0-applebin_ios-ios_arm64-dbg-ST-1085b1e95571/bin/Code/SystemResources/AppDependencies/AppDependencies.rules_xcodeproj.build_settings bazel-out/ios-arm64-min14.0-applebin_ios-ios_arm64-dbg-ST-1085b1e95571/bin/Code/SystemResources/AppDependencies/AppDependencies.rules_xcodeproj.debug_settings 0 1 bazel-out/ios-arm64-min14.0-applebin_ios-ios_arm64-dbg-ST-1085b1e95571/bin/Code/SystemResources/AppDependencies/AppDependencies_swift.rules_xcodeproj.debug_settings '' 0 0 '' '' 0 '' '' '' 0 '' '' bazel-out/darwin_arm64-opt-exec-2B5CBBC6-ST-477482371507/bin/external/rules_swift~1.13.0/tools/worker/worker swiftc @bazel-out/ios-arm64-min14.0-applebin_ios-ios_arm64-dbg-ST-1085b1e95571/bin/Code/SystemResources/AppDependencies/AppDependencies.rules_xcodeproj.build_settings-0.params --- ---)
# Configuration: ba4f66d6c1caab0757ed204ea2949fcf8a4e0a53735846a4b89f2b6948d9fb93
# Execution platform: @local_config_platform//:host
ERROR: Internal precondition failure:
tools/generators/lib/PBXProj/src/TargetSwiftDebugSettings.swift:34: "/private/var/tmp/_bazel_<user>/907fcb5025b8b52c1255ae7b70e7bf3a/rules_xcodeproj.noindex/build_output_base/execroot/_main/bazel-out/ios-arm64-min14.0-applebin_ios-ios_arm64-dbg-ST-1085b1e95571/bin/Code/SystemResources/AppDependencies/AppDependencies_swift.rules_xcodeproj.debug_settings": Missing clang args count
Please file a bug report at https://github.com/MobileNativeFoundation/rules_xcodeproj/issues/new?template=bug.md
ERROR: Code/SystemResources/AppDependencies/BUILD.bazel:12:15: Generating bazel-out/ios-sim_arm64-min14.0-applebin_ios-ios_sim_arm64-dbg-ST-7229f8b34da9/bin/Code/SystemResources/AppDependencies/AppDependencies.rules_xcodeproj.build_settings failed: (Exit 1): universal_target_build_settings failed: error executing command (from target //Code/SystemResources/AppDependencies:AppDependencies) 
  (cd /private/var/tmp/_bazel_<user>/907fcb5025b8b52c1255ae7b70e7bf3a/rules_xcodeproj.noindex/build_output_base/execroot/_main && \
  exec env - \
  bazel-out/darwin_arm64-opt-exec-2B5CBBC6-ST-477482371507/bin/external/rules_xcodeproj~1.15.0/tools/generators/target_build_settings/universal_target_build_settings 1 bazel-out/ios-sim_arm64-min14.0-applebin_ios-ios_sim_arm64-dbg-ST-7229f8b34da9/bin/Code/SystemResources/AppDependencies/AppDependencies.rules_xcodeproj.build_settings bazel-out/ios-sim_arm64-min14.0-applebin_ios-ios_sim_arm64-dbg-ST-7229f8b34da9/bin/Code/SystemResources/AppDependencies/AppDependencies.rules_xcodeproj.debug_settings 0 1 bazel-out/ios-sim_arm64-min14.0-applebin_ios-ios_sim_arm64-dbg-ST-7229f8b34da9/bin/Code/SystemResources/AppDependencies/AppDependencies_swift.rules_xcodeproj.debug_settings '' 0 0 '' '' 0 '' '' '' 0 '' '' bazel-out/darwin_arm64-opt-exec-2B5CBBC6-ST-477482371507/bin/external/rules_swift~1.13.0/tools/worker/worker swiftc @bazel-out/ios-sim_arm64-min14.0-applebin_ios-ios_sim_arm64-dbg-ST-7229f8b34da9/bin/Code/SystemResources/AppDependencies/AppDependencies.rules_xcodeproj.build_settings-0.params --- ---)
# Configuration: 79e7d91f01934ef122458860281ec7fd9d20f8f620a5175739a049a2c36d03cb
# Execution platform: @local_config_platform//:host
ERROR: Internal precondition failure:
tools/generators/lib/PBXProj/src/TargetSwiftDebugSettings.swift:34: "/private/var/tmp/_bazel_<user>/907fcb5025b8b52c1255ae7b70e7bf3a/rules_xcodeproj.noindex/build_output_base/execroot/_main/bazel-out/ios-sim_arm64-min14.0-applebin_ios-ios_sim_arm64-dbg-ST-7229f8b34da9/bin/Code/SystemResources/AppDependencies/AppDependencies_swift.rules_xcodeproj.debug_settings": Missing clang args count
Please file a bug report at https://github.com/MobileNativeFoundation/rules_xcodeproj/issues/new?template=bug.md
INFO: Elapsed time: 38.273s, Critical Path: 0.15s
INFO: 121 processes: 47 disk cache hit, 73 internal, 1 local.
FAILED: Build did NOT complete successfully
ERROR: Build failed. Not running target

Reproduction steps

From what what was reported to me:

• Switch from Xcode 15.1 to Xcode 15.0.1 different commits after having generated with 15.1

Expected behavior

The project generates correctly

rules_xcodeproj version

1.15.0

Xcode version

15.1 -> 15.0.1

Bazel version

6.4.0

rules_apple version

3.1.1

rules_swift version

1.13.0

Additional information

No response

Start at tools/generators/lib/PBXProj/src/TargetSwiftDebugSettings.swift:34 and inspect the generated .rules_xcodeproj.debug_settings input from universal_target_build_settings. Reproduce the failure by switching from Xcode 15.1 to 15.0.1 with rules_xcodeproj 1.15.0, Bazel 6.4.0, rules_apple 3.1.1, and rules_swift 1.13.0. Done means project generation succeeds without the missing clang args count error.