Avoid checking visibility and other constraints for the lipo dependency.

The lipo dependency is artificial; it's an artifact of how LIPO is implemented
in Bazel. Running these checks doesn't make sense; they unnecessarily
disallow perfectly valid scenarios.

--
MOS_MIGRATED_REVID=102550286
diff --git a/src/main/java/com/google/devtools/build/lib/packages/Attribute.java b/src/main/java/com/google/devtools/build/lib/packages/Attribute.java
index 391a1da..c181a7e 100644
--- a/src/main/java/com/google/devtools/build/lib/packages/Attribute.java
+++ b/src/main/java/com/google/devtools/build/lib/packages/Attribute.java
@@ -201,6 +201,11 @@
      * its value based on properties of the build configuration.
      */
     NONCONFIGURABLE,
+
+    /**
+     * Whether we should skip constraints checks for licenses, visibility, etc.
+     */
+    SKIP_CONSTRAINTS_CHECKS,
   }
 
   // TODO(bazel-team): modify this interface to extend Predicate and have an extra error
@@ -521,6 +526,13 @@
     }
 
     /**
+     * Disables constraints and visibility checks.
+     */
+    public Builder<TYPE> skipConstraintsCheck() {
+      return setPropertyFlag(PropertyFlag.SKIP_CONSTRAINTS_CHECKS, "skip_constraints_checks");
+    }
+
+    /**
      * If this is a label or label-list attribute, then this sets the allowed
      * rule types for the labels occurring in the attribute. If the attribute
      * contains Labels of any other rule type, then an error is produced during
@@ -1238,6 +1250,10 @@
     return getPropertyFlag(PropertyFlag.CHECK_ALLOWED_VALUES);
   }
 
+  public boolean performConstraintsCheck() {
+    return !getPropertyFlag(PropertyFlag.SKIP_CONSTRAINTS_CHECKS);
+  }
+
   /**
    * Returns true if this attribute's value can be influenced by the build configuration.
    */