Pending test for recompilation of package object

The convention says to place package objects in files named
`package.scala`, but this is not enforced by the scala specification.
The incremental compiler currently offers special treatment for files
whose name is `package.scala`, but it should rather care about whether a
file defines a package object or not.

This test fails because it defines a package object in a file whose name
is not `package.scala`.

sbt/src/sbt-test/source-dependencies/package-object-name/A.scala

@@ -0,0 +1,3 @@
+package b
+
+class A

sbt/src/sbt-test/source-dependencies/package-object-name/b.scala

@@ -0,0 +1 @@
+package object b extends A

sbt/src/sbt-test/source-dependencies/package-object-name/changes/A1.scala

@@ -0,0 +1,5 @@
+package b
+
+class A {
+  def foo = 1
+}

sbt/src/sbt-test/source-dependencies/package-object-name/pending

@@ -0,0 +1,3 @@
+> compile
+$ copy-file changes/A1.scala A.scala
+> compile