Cleanups for newer Xcodes

- Move up to 8.4 as the high simulator (assuming Xcode 6.4).
- Add cast to NSMutableDictionary so clang and resolve the selector.
- Add case for the newer static analyzer so it won't trigger a false warning.
- Update the "dictionary" interface to use "object" naming. Xcode 7+ has gotten
  more strict on the use of nonnull/nullable; combining that with the generic
  collection support; and the "dictionary" classes we created now collide with
  what the generic KeyValueCoding in the system headers triggering
  warnings/errors. Fix this and hopefully all future issue by renaming the
  methods to use "object" for the classes that have data types as objects
  instead of PODs. Taking this renaming hit now while ObjC is still in beta
  because it is a breaking change for any existing code.

1 files changed, 4 insertions, 4 deletions

diff --git a/objectivec/Tests/GPBMessageTests+Serialization.m b/objectivec/Tests/GPBMessageTests+Serialization.m
index ae4be9e5..4dcca7a3 100644
--- a/objectivec/Tests/GPBMessageTests+Serialization.m
+++ b/objectivec/Tests/GPBMessageTests+Serialization.m
@@ -994,16 +994,16 @@ static NSData *DataFromCStr(const char *str) {
   val2.optionalInt32 = 129;
   [msg.mapStringMessage setValue:val1 forKey:@"228"];
   [msg.mapStringMessage setValue:val2 forKey:@"2029"];
-  [msg.mapInt32Bytes setValue:DataFromCStr("1030 bytes") forKey:230];
-  [msg.mapInt32Bytes setValue:DataFromCStr("131") forKey:2031];
+  [msg.mapInt32Bytes setObject:DataFromCStr("1030 bytes") forKey:230];
+  [msg.mapInt32Bytes setObject:DataFromCStr("131") forKey:2031];
   [msg.mapInt32Enum setValue:Message2_Enum_Bar forKey:232];
   [msg.mapInt32Enum setValue:Message2_Enum_Baz forKey:2033];
   Message2 *val3 = [[Message2 alloc] init];
   val3.optionalInt32 = 1034;
   Message2 *val4 = [[Message2 alloc] init];
   val4.optionalInt32 = 135;
-  [msg.mapInt32Message setValue:val3 forKey:234];
-  [msg.mapInt32Message setValue:val4 forKey:2035];
+  [msg.mapInt32Message setObject:val3 forKey:234];
+  [msg.mapInt32Message setObject:val4 forKey:2035];
 
   NSData *data = [msg data];
   Message2 *msg2 = [[Message2 alloc] initWithData:data error:NULL];