Merge pull request #249 from zatchl/nsmutabledict

Add `NSMutableDictionary`

Author: madsmtm

objc2/src/foundation/mod.rs

@@ -64,6 +64,7 @@ pub use self::geometry::{CGFloat, NSPoint, NSRect, NSSize};
 pub use self::mutable_array::NSMutableArray;
 pub use self::mutable_attributed_string::NSMutableAttributedString;
 pub use self::mutable_data::NSMutableData;
+pub use self::mutable_dictionary::NSMutableDictionary;
 pub use self::mutable_set::NSMutableSet;
 pub use self::mutable_string::NSMutableString;
 pub use self::number::NSNumber;
@@ -106,6 +107,7 @@ mod geometry;
 mod mutable_array;
 mod mutable_attributed_string;
 mod mutable_data;
+mod mutable_dictionary;
 mod mutable_set;
 mod mutable_string;
 mod number;
@@ -180,6 +182,7 @@ mod tests {
         assert_auto_traits::<NSMutableArray<NSString, Shared>>();
         assert_auto_traits::<NSMutableAttributedString>();
         assert_auto_traits::<NSMutableData>();
+        assert_auto_traits::<NSMutableDictionary<NSString, NSString>>();
         assert_auto_traits::<NSMutableSet<NSString, Shared>>();
         assert_auto_traits::<NSMutableString>();
         assert_auto_traits::<NSNumber>();