Adds support for formatting NS_CLOSED_ENUM and CF_CLOSED_ENUM alongside NS_ENUM and CF_ENUM.
Summary:
Addresses the formatting of NS_CLOSED_ENUM and CF_CLOSED_ENUM, introduced in Swift 5.
Before:
```
typedef NS_CLOSED_ENUM(NSInteger, Foo){FooValueOne = 1, FooValueTwo,
FooValueThree};
```
After:
```
typedef NS_CLOSED_ENUM(NSInteger, Foo) {
FooValueOne = 1,
FooValueTwo,
FooValueThree
};
```
Contributed by heijink.
Reviewers: benhamilton, krasimir
Reviewed By: benhamilton
Subscribers: cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D65012
llvm-svn: 366719