Revert unintented formatting change

Author: retronym

src/reflect/scala/reflect/api/Trees.scala

@@ -59,7 +59,8 @@ import scala.annotation.tailrec
  *  @groupprio Factories 1
  *  @groupname Copying   Tree Copying
  *  @groupprio Copying   1
-  *  @contentDiagram hideNodes "*Api"
+ *
+ *  @contentDiagram hideNodes "*Api"
  *  @group ReflectionAPI
  */
 trait Trees { self: Universe =>

src/reflect/scala/reflect/internal/Definitions.scala

@@ -881,7 +881,7 @@ trait Definitions extends api.StandardDefinitions {
         def volatileUpperBound = isVolatile(tp.upperBound)
         def safeIsVolatile = (
           if (volatileRecursions < TypeConstants.LogVolatileThreshold)
-            isVolatile(tp.upperBound)
+            volatileUpperBound
           // we can return true when pendingVolatiles contains sym, because
           // a cycle will be detected afterwards and an error will result anyway.
           else pendingVolatiles(sym) || {

src/reflect/scala/reflect/internal/TypeDebugging.scala

@@ -14,7 +14,6 @@ package scala
 package reflect
 package internal
 
-import scala.annotation.tailrec
 import util._
 
 trait TypeDebugging {

src/reflect/scala/reflect/internal/util/StringOps.scala

@@ -17,8 +17,6 @@ package util
 
 import java.lang.System.{lineSeparator => EOL}
 
-import scala.annotation.tailrec
-
 /** This object provides utility methods to extract elements
  *  from Strings.
  *