Avoid memoization of virtual source files with same path

Author: nicolasstucki

compiler/src/dotty/tools/io/VirtualFile.scala

@@ -38,12 +38,6 @@ class VirtualFile(val name: String, override val path: String) extends AbstractF
     this.content = content
   }
 
-  override def hashCode: Int = path.hashCode
-  override def equals(that: Any): Boolean = that match {
-    case x: VirtualFile => x.path == path
-    case _              => false
-  }
-
   private[this] var content = Array.emptyByteArray
 
   def absolute: AbstractFile = this

compiler/test-resources/repl/notFound

@@ -2,3 +2,7 @@ scala>  Foo
 1 |  Foo
   |  ^^^
   |  Not found: Foo
+scala>  Bar
+1 |  Bar
+  |  ^^^
+  |  Not found: Bar