Compiler plugin generated local types from `@Composable` lambdas don't work

The error reads `'val DataRow.age2: Int' cannot be called in this context with an implicit receiver. Use an explicit receiver if necessary.` Unfortunately, the only way to fix it seems to be moving it outside the lambda body.

To reproduce:

```kt
@DataSchema
data class Person(val age: Int, val name: String)

@Composable
fun DataFrameScreen(df: DataFrame) {
val a = df
.add("age2") { age }
.filter { age2 >= 20 }
a.age
a.age2

Column {
val b = df
.add("age2") { age }
.filter { age2 >= 20 }
b.age
b.age2
a.age
a.age2
}
}
```