Kotlin codegen always creates new label for variables assignments

[jenrik]

The code generator should only create a new label if it encounters a variable declaration, not when it just sees a variable assignment.

The code in question is here https://github.com/d409f19/cellmata/blob/master/compiler/src/main/kotlin/visitors/codegen.kt#L748:L752

[jenrik]

I believe the changing the mentioned code to the following would resolve the issue

val label = if (node.isDeclaration) {
    val newLabel = nextLabel()
    addMapping(node.ident, newLabel)
    newLabel
} else {
    getMappedLabel(node.ident)
}
return "var $label = (${visit(node.expr)})"