Formatter: Add a test for multi-line ObjC dict literals.
Formatter: Add a test for multi-line ObjC dict literals.

As it turns out, this already works reasonably well.

This example from http://clang.llvm.org/docs/ObjectiveCLiterals.html
NSDictionary *dictionary = @{
    @"name" : NSUserName(),
    @"date" : [NSDate date],
    @"processInfo" : [NSProcessInfo processInfo]
};

is formatted like
NSDictionary *dictionary = @{ @"name" : NSUserName(), @"date" : [NSDate date],
                              @"processInfo" : [NSProcessInfo processInfo] };

There's already a FIXME in NestedStaticInitializers about supporting one
initializer per line, which is really all that's missing here too.



git-svn-id: ffe668792ed300d6c2daa1f6eba2e0aa28d7ec6c@174842 91177308-0d34-0410-b5e6-96231b3b80d8

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