[C++11] Replacing ObjCCategoryDecl iterators propimpl_begin() and propimpl_end() with iterator_range property_impls(). Updating all of the usages of the iterators with range-based for loops.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@203930 91177308-0d34-0410-b5e6-96231b3b80d8
[C++11] Replacing ObjCImplementationDecl 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@203932 91177308-0d34-0410-b5e6-96231b3b80d8
[C++11] Replacing DeclContext iterators lookups_begin() and lookups_end() with iterator_range lookups(). Similar for noload_lookups(). Updating all of the usages of the iterators with range-based for loops.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@203933 91177308-0d34-0410-b5e6-96231b3b80d8
Objective-C++ IRGen. Due to change to AST for initialization of c++11’s 
data members by addition of CXXDefaultInitExpr node to the initializer expression, 
it has broken treatment of arc code for such initializations. Reviewed by John McCall.
// rdar://16299964


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@203935 91177308-0d34-0410-b5e6-96231b3b80d8