Add keywords to get metadata.

[NMSAzulX]

Use keywords to get metadata. For example:

public class Foo
{
   public int _index;
   public string Name;
   public void Get(){}
   public void Get(string){}
}

Keywords:

var getMethodInfo = methodOf(Foo.Get);
var getMethodInfo2 = methodOf(Foo.Get(string));
var indexFieldInfo = fieldsOf(Foo._index);
var namePropInfo = propOf(Foo.Name);
var memberInfo = memberOf(Foo.XXX);

[HaloFour]

#712

[NMSAzulX]

Thank you~