StringBuilder no longer violates the Seq revers...

StringBuilder no longer violates the Seq reverse contract: it returns
a new StringBuilder. The behavior formerly found in reverse (updates
in place) is now available in reverseContents. Migration warning on
reverse. Closes #3327.

Also did some StringBuilder rewriting as per discussion with odersky.
And took a cleaver to parts of the documentation to get to the good
parts a little faster. Review by community.

1 files changed, 8 insertions, 0 deletions

diff --git a/test/files/run/bug3327.scala b/test/files/run/bug3327.scala
new file mode 100644
index 0000000000..7e6d3fc210
--- /dev/null
+++ b/test/files/run/bug3327.scala
@@ -0,0 +1,8 @@
+object Test {
+  def main (args : Array[String]) {
+    val b = new StringBuilder
+    b.append ("Hello World!")
+    b.lastIndexOf ('e')
+    println (b.toString)
+  }
+}
\ No newline at end of file