TsuRenameSymbol breaks when symbol occures twice on same line

[nextchessmove]

Given this example source:

interface LongIdentifier { }

function foo(n: LongIdentifier) : LongIdentifier {
  return n;
}

Placing the caret over the first LongIdentifier and running :TsuRenameSymbol to rename LongIdentifier to Foo results in this:

interface Foo { }

function foo(n: Foo) : LongIdentifFoo
  return n;
}

I haven't dug in much to the implementation, but from the looks of it, could applying the changes "rightmost first" fix this?

Thank you for such a great plugin!

[Yosuke Kurami]

I've fixed via #290