### Tools. Incremental Compile

- [`KT-58289`](https://youtrack.jetbrains.com/issue/KT-58289) IC fails to detect a change to class annotations
- [`KT-58986`](https://youtrack.jetbrains.com/issue/KT-58986) New IC: ISE "The following LookupSymbols are not yet converted to ProgramSymbols: LookupSymbol(name=$$delegatedProperties, ...)"

</pre>

<p>
Applying the built-in function <code>complex</code> to untyped
integer, rune, or floating-point constants yields
an untyped complex constant.
</p>

<pre>
const ic = complex(0, c)   // ic == 3.75i  (untyped complex constant)
const iΘ = complex(0, Θ)   // iΘ == 1i     (type complex128)
</pre>

<p>
Constant expressions are always evaluated exactly; intermediate values and the