anchor.diff:  }
   
   type LinkReference {
  -  offsets: [ByteOffset]!
  +  offsets: [ByteOffset!]!
     length: Int!
   }
   
  
positive.code:   contractInstance(networkId: String!, name: String!): ContractInstance
  }
  
  type ContractInstance {
    address: Address!
    network: Network!
    transactionHash: TransactionHash!
    constructorArgs: [Value]!
    contractType: ContractType!
    callBytecode: Bytecode!
    linkValues: [LinkValue]!
  }
  
  type ContractType {
    name: String!
    abi: ABI!
    compilation: Compilation
    createBytecode: Bytecode
  }
  
negative.code:   bytes: Bytes!
    sourceMap: String,
    instructions: [Instruction!],
    linkReferences: [LinkReference]
  }
  
  type Instruction {
  