Changes in docs and layout. No review.

2 files changed, 5 insertions, 4 deletions

diff --git a/src/compiler/scala/tools/nsc/io/AbstractFile.scala b/src/compiler/scala/tools/nsc/io/AbstractFile.scala
index fd96da4f73..870cc64913 100644
--- a/src/compiler/scala/tools/nsc/io/AbstractFile.scala
+++ b/src/compiler/scala/tools/nsc/io/AbstractFile.scala
@@ -106,9 +106,7 @@ abstract class AbstractFile extends AnyRef with Iterable[AbstractFile] {
   def underlyingSource: Option[AbstractFile] = None
 
   /** Does this abstract file denote an existing file? */
-  def exists: Boolean =
-    if (file ne null) file.exists
-    else true
+  def exists: Boolean = (file eq null) || file.exists
 
   /** Does this abstract file represent something which can contain classfiles? */
   def isClassContainer = isDirectory || (sfile exists (Path isJarOrZip _))
diff --git a/src/library/scala/collection/TraversableOnce.scala b/src/library/scala/collection/TraversableOnce.scala
index de4eb6fc22..6656b05083 100644
--- a/src/library/scala/collection/TraversableOnce.scala
+++ b/src/library/scala/collection/TraversableOnce.scala
@@ -294,7 +294,7 @@ trait TraversableOnce[+A] {
    *   @tparam  B    the result type of the `*` operator.
    *   @return       the product of all elements of this $coll with respect to the `*` operator in `num`.
    *
-   *   @usecase def product: Int
+   *   @usecase def product: A
    *
    *   @return       the product of all elements in this $coll of numbers of type `Int`.
    *   Instead of `Int`, any other type `T` with an implicit `Numeric[T]` implementation
@@ -442,6 +442,9 @@ trait TraversableOnce[+A] {
    *  is undefined.
    *  $willNotTerminateInf
    *  @return      a map containing all elements of this $coll.
+   *  @usecase   def toMap: Map[K, V]
+   *  @return      a map of type `immutable.Map[K, V]`
+   *               containing all key/value pairs of type `(K, V)` of this $coll.
    */
   def toMap[T, U](implicit ev: A <:< (T, U)): immutable.Map[T, U] = {
     val b = immutable.Map.newBuilder[T, U]