Package information is not propagated - packages that do not respect the Java folder rule are not visible in the editor until the file is actually opened.

Steps to reproduce:

1. Create the following two files outside eclipse:
TestA.scala:

package something.very.complex
package more.complex

class TestA {
	def print = println("A")
}

TestB.scala:

package something.very.complex
package not.so.complex

import more.complex._

class TestB extends TestA {
	override def print = println("B")
}

2. Create a Scala project
3. Drag the two files in the src folder and copy them
4. Double click on TestB.scala and try to Ctrl-click on TestA (in the "class TestB extends TestA" statement) - no success
5. Clean and rebuild project
6. Try to Ctrl-click TestA again - no success
7. Double click on TestA.scala and close it
8. Try to Ctrl-click TestA again - now it's visible

Details:
- Eclipse version: Helios Service Release 2 Build id: 20110218-0911
- ScalaIDE version: 2.0.0.201106012217-beta5-816aa9f

// file A.scala
package a
class A {}

// file B.scala
package b
import a._
class B extends A {}