[C++11] Replacing ObjCInterfaceDecl iterators all_referenced_protocol_begin() and all_referenced_protocol_end() with iterator_range all_referenced_protocols(). Updating all of the usages of the iterators with range-based for loops.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@203848 91177308-0d34-0410-b5e6-96231b3b80d8
[C++11] Replacing ObjCInterfaceDecl iterators ivar_begin() and ivar_end() with iterator_range ivars(). Updating all of the usages of the iterators with range-based for loops.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@203849 91177308-0d34-0410-b5e6-96231b3b80d8
[C++11] Replacing ObjCInterfaceDecl iterators visible_categories_begin() and visible_categories_end() with iterator_range visible_categories(). Updating all of the usages of the iterators with range-based for loops.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@203851 91177308-0d34-0410-b5e6-96231b3b80d8
[C++11] Replacing ObjCInterfaceDecl iterators known_categories_begin() and known_categories_end() with iterator_range known_categories(). Updating all of the usages of the iterators with range-based for loops.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@203854 91177308-0d34-0410-b5e6-96231b3b80d8
[C++11] Replacing ObjCInterfaceDecl iterators visible_extensions_begin() and visible_extensions_end() with iterator_range visible_extensions(). Updating all of the usages of the iterators with range-based for loops.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@203855 91177308-0d34-0410-b5e6-96231b3b80d8