DWScript SVN: method keyword and other changes

A quick update on recent changes in the SVN:

• introduced support for Prism ^[1]-like ‘method‘ keyword, which can be used as an alternative for ‘procedure‘ and ‘function‘ for class methods.

  procedure TMyClass.MyMethodWithNoResult;
  function TMyClass.ReturnsAString : String;

  can now alternatively be written as

  method TMyClass.MyMethodWithNoResult;
  method TMyClass.ReturnsAString : String;

  both forms are supported, though if you declared as a ‘method‘ in the class, you’ll have to implement as a ‘method‘.

• local ‘const‘ sections are now accepted in a procedure body, and you can have multiple ‘const‘ and ‘var‘ sections before ‘begin‘.
• type inference now accepted for variables in the ‘var‘ section of a procedure body.
• minor compiler optimization and fixes