Make ConfiguredTargetValue a NotComparableSkyValue. Since no implementation of ConfiguredTarget implements equality, it's very much not comparable.

PiperOrigin-RevId: 201004116
diff --git a/src/main/java/com/google/devtools/build/lib/skyframe/ConfiguredTargetValue.java b/src/main/java/com/google/devtools/build/lib/skyframe/ConfiguredTargetValue.java
index b527d59..622491b 100644
--- a/src/main/java/com/google/devtools/build/lib/skyframe/ConfiguredTargetValue.java
+++ b/src/main/java/com/google/devtools/build/lib/skyframe/ConfiguredTargetValue.java
@@ -22,14 +22,13 @@
 import com.google.devtools.build.lib.cmdline.Label;
 import com.google.devtools.build.lib.collect.nestedset.NestedSet;
 import com.google.devtools.build.lib.packages.Package;
+import com.google.devtools.build.skyframe.NotComparableSkyValue;
 import com.google.devtools.build.skyframe.SkyKey;
 import com.google.devtools.build.skyframe.SkyValue;
 import java.util.List;
 
-/**
- * A {@link SkyValue} for a {@link ConfiguredTarget}.
- */
-public interface ConfiguredTargetValue extends SkyValue {
+/** A {@link SkyValue} for a {@link ConfiguredTarget}. */
+public interface ConfiguredTargetValue extends NotComparableSkyValue {
   static SkyKey key(Label label, BuildConfiguration configuration) {
     return ConfiguredTargetKey.of(label, configuration);
   }