title: Question about c# optimizer
body: <p>If I write:</p>
  
  <pre><code>SomeType simpleName = classWithLongName.otherLongName;
  </code></pre>
  
  <p>And then use "simpleName" instead of "classWithLongName.otherLongName", will this change the program in any way (for instance performance wise)?</p>
  
  <p>What does the compiler do with this? Does it copy+paste "classWithLongName.otherLongName", everywhere I use "simpleName".</p>