IrFile /arrayAugmentedAssignment2.kt
  DUMMY IA
  DUMMY IB
  IrFunction public fun IB.test(/*0*/ a: IA): kotlin.Unit
    IrExpressionBody
      BLOCK type=<no-type> hasResult=false isDesugared=false
        CALL .set type=kotlin.Unit operator=PLUSEQ
          $this: $RECEIVER of: test type=IB
          $receiver: GET_VAR a type=IA
          index: LITERAL String type=kotlin.String value=''
          value: CALL .plus type=kotlin.Int operator=PLUSEQ
            $this: CALL .get type=kotlin.Int operator=PLUSEQ
              $this: GET_VAR a type=IA
              index: LITERAL String type=kotlin.String value=''
            other: LITERAL Int type=kotlin.Int value='42'
