Not correct porting of string + int(int + int)

c, d - Int
as3 code for example:
```actionscript
package {
public class Issue {
public function Issue() {
a = "b" + int (c + d);
}
}
}
```
expected result
```haxe

class Issue
{
public function new()
{
a = "b" + (c + d);
}
}

```
actual result
```haxe

class Issue
{
public function new()
{
a = "b" + c + d;
}
}

```

Start by tracing the AS3-to-Haxe conversion for the shown expression, especially how int(c + d) is handled when combined with string concatenation. Compare the generated output with the expected example; done means the parentheses around c + d are preserved so the converted expression matches the requested Haxe form.

Written by the indexing model from the issue text.