/// <summary>Adds a global to this module</summary>
/// <param name="typeRef">Type of the value</param>
/// <param name="name">Name of the global</param>
/// <returns>The new <see cref="GlobalVariable"/></returns>
/// <openissues>
/// - What does LLVM do if creating a second Global with the same name (return null, throw, crash??,...)
/// </openissues>
public GlobalVariable AddGlobal(ITypeRef typeRef, string name)
{
ThrowIfDisposed( );
var handle = ModuleHandle.AddGlobal(typeRef.GetTypeRef( ), name);
return(Value.FromHandle <GlobalVariable>(handle) !);
}