Support Xcode builds in project dirs with spaces (#8709)
Support Xcode builds in project dirs with spaces (#8709)

Use line-based iteration in place of word-based iteration over the
framework directories, to avoid breaking on spaces.
flutter/flutter,turnidge/flutter,turnidge/flutter,flutter/flutter,cbracken/flutter,flutter/flutter,cbracken/flutter,flutter/flutter,tvolkert/flutter,flutter/flutter,cbracken/flutter,turnidge/flutter,tvolkert/flutter,Hixie/flutter,Hixie/flutter,turnidge/flutter,Hixie/flutter,tvolkert/flutter,tvolkert/flutter,Hixie/flutter,cbracken/flutter,flutter/flutter,Hixie/flutter,tvolkert/flutter,cbracken/flutter,cbracken/flutter,Hixie/flutter,flutter/flutter,tvolkert/flutter,Hixie/flutter,tvolkert/flutter,Hixie/flutter,flutter/flutter,cbracken/flutter,cbracken/flutter,tvolkert/flutter,tvolkert/flutter,turnidge/flutter,tvolkert/flutter,Hixie/flutter,flutter/flutter,cbracken/flutter,cbracken/flutter,Hixie/flutter,flutter/flutter