Address review comments

Author: avenger2597

annotator-core/src/main/java/edu/ucr/cs/riple/core/checkers/nullaway/NullAway.java

@@ -136,6 +136,8 @@ private NullAwayError deserializeErrorFromTSVLine(ModuleInfo moduleInfo, String
       annotations = Set.of();
     } else if (Utility.isTypeUseAnnotation(config.nullableAnnot)) {
       if (errorType.equals(NullAwayError.ASSIGN_NULLABLE_TO_NONNULL_ARRAY)) {
+        // The typeIndex ImmutableList.of(1, 0) specifies that the annotation
+        // should be applied to the array's component type.
         annotations =
             Set.of(
                 new AddTypeUseMarkerAnnotation(

annotator-core/src/test/java/edu/ucr/cs/riple/core/CoreTest.java

@@ -575,7 +575,7 @@ public void nonnullTypeUseAnnotationOnFormalParameterAcknowledgmentTest() {
   }
 
   @Test
-  public void fieldAssignNullableNonNullArrayContent() {
+  public void assignNullableToNonnullArrayComponentTypeTest() {
     coreTestHelper
         .onTarget()
         .withSourceLines(
@@ -592,13 +592,8 @@ public void fieldAssignNullableNonNullArrayContent() {
                 new OnField("Main.java", "test.Main", Set.of("arr")),
                 ImmutableList.of(ImmutableList.of(1, 0)),
                 -1))
-        .setPredicate(
-            (expected, found) ->
-                expected.root.equals(found.root)
-                    && expected.getOverallEffect(coreTestHelper.getConfig())
-                        == found.getOverallEffect(coreTestHelper.getConfig()))
         .disableBailOut()
-        .checkExpectedOutput("fieldAssignNullableNonNullArrayContent/expected")
+        .checkExpectedOutput("assignNullableToNonnullArrayComponentTypeTest/expected")
         .enableJSpecifyMode()
         .start();
   }