/// <summary>
/// Applies local names to a temporary scope. Is useful for expanding nodes that introduce a variable.
/// </summary>
public static T WithTempLocals <T>(Context ctx, Func <T> action, params Local[] vars)
{
var scope = new Scope(ScopeKind.Unclosured);
foreach (var curr in vars)
{
scope.DeclareLocal(curr);
}
ctx.EnterScope(scope);
var result = action();
ctx.ExitScope();
return(result);
}