Rename the BlacklistPackagePrefix family of classes and their related functions.

Rename BlacklistPackagePrefix to IgnoredPackagePrefix to reflect the fact that
this comes from the bazelignore file in repositories. Update all code references
referring to the blacklist to use a new variable or method name to reflect the
new class name.

RELNOTES: None
PiperOrigin-RevId: 318117736
diff --git a/src/main/java/com/google/devtools/build/lib/skyframe/SkyFunctions.java b/src/main/java/com/google/devtools/build/lib/skyframe/SkyFunctions.java
index 8804524..b47b5f1 100644
--- a/src/main/java/com/google/devtools/build/lib/skyframe/SkyFunctions.java
+++ b/src/main/java/com/google/devtools/build/lib/skyframe/SkyFunctions.java
@@ -73,8 +73,8 @@
       SkyFunctionName.createHermetic("COLLECT_TEST_SUITES_IN_PACKAGE");
   public static final SkyFunctionName COLLECT_PACKAGES_UNDER_DIRECTORY =
       SkyFunctionName.createHermetic("COLLECT_PACKAGES_UNDER_DIRECTORY");
-  public static final SkyFunctionName BLACKLISTED_PACKAGE_PREFIXES =
-      SkyFunctionName.createHermetic("BLACKLISTED_PACKAGE_PREFIXES");
+  public static final SkyFunctionName IGNORED_PACKAGE_PREFIXES =
+      SkyFunctionName.createHermetic("IGNORED_PACKAGE_PREFIXES");
   static final SkyFunctionName TEST_SUITE_EXPANSION =
       SkyFunctionName.createHermetic("TEST_SUITE_EXPANSION");
   static final SkyFunctionName TESTS_IN_SUITE = SkyFunctionName.createHermetic("TESTS_IN_SUITE");