Optimize GPBDictionary.m codegen to reduce size of overall library by 46K per architecture.
Optimize GPBDictionary.m codegen to reduce size of overall library by 46K per architecture.

google/protobuf,google/protobuf,google/protobuf,google/protobuf,google/protobuf,google/protobuf,google/protobuf,google/protobuf,google/protobuf,google/protobuf,google/protobuf