Update the hover 'containingLibraryName' to not include the 'file:///' prefix.

This is a follow up on a comment in the previous change https://dart-review.googlesource.com/c/sdk/+/103481/.

Change-Id: I0f377d6c7d68d55464a4e111a6a65715a82e0591
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/103546
Reviewed-by: Jaime Wren <jwren@google.com>
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Commit-Queue: Jaime Wren <jwren@google.com>

pkg/analysis_server/tool/spec/generated/java/types/HoverInformation.java

@@ -55,8 +55,9 @@ public class HoverInformation {
   private final String containingLibraryPath;
 
   /**
-   * The URI of the containing library, examples here include "dart:core", "package:.." and even
-   * "file:.." URIs. The data is omitted if the element is declared inside an HTML file.
+   * The URI of the containing library, examples here include "dart:core", "package:.." and file uris
+   * represented by the path on disk, "/..". The data is omitted if the element is declared inside an
+   * HTML file.
    */
   private final String containingLibraryName;
 
@@ -185,8 +186,9 @@ public class HoverInformation {
   }
 
   /**
-   * The URI of the containing library, examples here include "dart:core", "package:.." and even
-   * "file:.." URIs. The data is omitted if the element is declared inside an HTML file.
+   * The URI of the containing library, examples here include "dart:core", "package:.." and file uris
+   * represented by the path on disk, "/..". The data is omitted if the element is declared inside an
+   * HTML file.
    */
   public String getContainingLibraryName() {
     return containingLibraryName;