Better names for declared providers-related classes.

Follows
https://docs.google.com/document/d/1aAIVWvHPERDz2cv_PCFGwr8dvh5FcAkENFoRsNS4clk/.

RELNOTES: None.
PiperOrigin-RevId: 163728291
diff --git a/src/main/java/com/google/devtools/build/lib/analysis/OutputGroupProvider.java b/src/main/java/com/google/devtools/build/lib/analysis/OutputGroupProvider.java
index 9557410..c53ef44 100644
--- a/src/main/java/com/google/devtools/build/lib/analysis/OutputGroupProvider.java
+++ b/src/main/java/com/google/devtools/build/lib/analysis/OutputGroupProvider.java
@@ -28,8 +28,8 @@
 import com.google.devtools.build.lib.collect.nestedset.Order;
 import com.google.devtools.build.lib.concurrent.ThreadSafety.Immutable;
 import com.google.devtools.build.lib.events.Location;
-import com.google.devtools.build.lib.packages.NativeClassObjectConstructor;
-import com.google.devtools.build.lib.packages.SkylarkClassObject;
+import com.google.devtools.build.lib.packages.Info;
+import com.google.devtools.build.lib.packages.NativeProvider;
 import com.google.devtools.build.lib.rules.SkylarkRuleConfiguredTargetUtil;
 import com.google.devtools.build.lib.syntax.EvalException;
 import com.google.devtools.build.lib.syntax.EvalUtils;
@@ -48,8 +48,8 @@
  * built when the target is mentioned on the command line (as opposed to being always built, like
  * {@link com.google.devtools.build.lib.analysis.FileProvider})
  *
- * <p>The artifacts are grouped into "output groups". Which output groups are built is controlled
- * by the {@code --output_groups} undocumented command line option, which in turn is added to the
+ * <p>The artifacts are grouped into "output groups". Which output groups are built is controlled by
+ * the {@code --output_groups} undocumented command line option, which in turn is added to the
  * command line at the discretion of the build command being run.
  *
  * <p>Output groups starting with an underscore are "not important". This means that artifacts built
@@ -57,12 +57,10 @@
  * not mentioned on the output.
  */
 @Immutable
-public final class OutputGroupProvider extends SkylarkClassObject
-    implements SkylarkIndexable, Iterable<String> {
+public final class OutputGroupProvider extends Info implements SkylarkIndexable, Iterable<String> {
   public static final String SKYLARK_NAME = "output_groups";
 
-  public static NativeClassObjectConstructor<OutputGroupProvider> SKYLARK_CONSTRUCTOR =
-      new Constructor();
+  public static NativeProvider<OutputGroupProvider> SKYLARK_CONSTRUCTOR = new Constructor();
 
   /**
    * Prefix for output groups that are not reported to the user on the terminal output of Blaze when
@@ -258,7 +256,7 @@
   }
 
   /** A constructor callable from Skylark for OutputGroupProvider. */
-  private static class Constructor extends NativeClassObjectConstructor<OutputGroupProvider> {
+  private static class Constructor extends NativeProvider<OutputGroupProvider> {
 
     private Constructor() {
       super(OutputGroupProvider.class, "OutputGroupInfo");