80399 Split out XcodeProjectInterpreter from xcode_build_settings (team, tool, cla: yes, waiting for tree to go green, a: null-safety)

80548 Migrate pub in flutter_tools to null safety (team, tool, cla: yes, waiting for tree to go green, a: null-safety)

80549 Migrate xcodeproj to null safety (team, tool, cla: yes, waiting for tree to go green, a: null-safety)

80605 Refactor LocalizationsGenerator initialize instance method into factory (team, tool, cla: yes, waiting for tree to go green, a: null-safety)

80614 Migrate xcode.dart and xcode_validator.dart to null safety (team, tool, cla: yes, waiting for tree to go green, a: null-safety)