make some warnings go away

Author: SethTisue

shared/src/main/scala/scala/util/parsing/combinator/JavaTokenParsers.scala

@@ -14,7 +14,6 @@ package scala
 package util.parsing.combinator
 
 import scala.annotation.migration
-import scala.language.implicitConversions
 
 /** `JavaTokenParsers` differs from [[scala.util.parsing.combinator.RegexParsers]]
  *  by adding the following definitions:

shared/src/main/scala/scala/util/parsing/combinator/PackratParsers.scala

@@ -67,11 +67,11 @@ trait PackratParsers extends Parsers {
      */
     private[PackratParsers] val cache = mutable.HashMap.empty[(Parser[_], Position), MemoEntry[_]]
 
-    private[PackratParsers] def getFromCache[T](p: Parser[T]): Option[MemoEntry[T]] = {
-      cache.get((p, pos)).asInstanceOf[Option[MemoEntry[T]]]
+    private[PackratParsers] def getFromCache[T2](p: Parser[T2]): Option[MemoEntry[T2]] = {
+      cache.get((p, pos)).asInstanceOf[Option[MemoEntry[T2]]]
     }
 
-    private[PackratParsers] def updateCacheAndGet[T](p: Parser[T], w: MemoEntry[T]): MemoEntry[T] = {
+    private[PackratParsers] def updateCacheAndGet[T2](p: Parser[T2], w: MemoEntry[T2]): MemoEntry[T2] = {
       cache.put((p, pos),w)
       w
     }

shared/src/main/scala/scala/util/parsing/combinator/Parsers.scala

@@ -238,7 +238,7 @@ trait Parsers {
       = withFilter(p)
 
     def withFilter(p: T => Boolean): Parser[T]
-      = Parser{ in => this(in) filterWithError(p, "Input doesn't match filter: "+_, in)}
+      = Parser{ in => this(in).filterWithError(p, "Input doesn't match filter: "+_, in)}
 
     // no filter yet, dealing with zero is tricky!
 

shared/src/main/scala/scala/util/parsing/combinator/lexical/StdLexical.scala

@@ -18,7 +18,6 @@ package lexical
 import token._
 import input.CharArrayReader.EofCh
 import scala.collection.mutable
-import scala.language.implicitConversions
 
 /** This component provides a standard lexical parser for a simple,
  *  [[http://scala-lang.org Scala]]-like language. It parses keywords and