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kotlinlang

I have a lambda with its `it` value parameter being used in its body.

```foo.increase {
   it + 42
}```
I want to create a different lambda, and replace `increase` with it, but reusing its `body`

```foo.newLambda {
    it + 42
}```
The problem is the `it` is not in the mapper so it fails. Indeed I got issues related to the parent in the `IrReturn` when I tested it without using `it` and I did the next workaround:

```this.body = declarationIrBuilder(this).irBlockBody {
    for (original in originalStatements) {
        val statement: IrStatement =
            if (original is IrReturn) irReturn(original.value)
            else original
        +statement
    }
}```
Is there a simple way to just copy the `body` an map the parent and the value parameters? I tried `deepCopyWithSymbols` and indicating a parent but it did not work.

Instead of copying the `body` I am copying the whole function and it works

```val expressionLambdaFunction: IrSimpleFunction =
    expressionLambda?.deepCopyWithSymbols(updateCallParent)?.function```