Enable caching

Author: smillst

checker/src/main/java/org/checkerframework/checker/initialization/InitializationAnnotatedTypeFactory.java

@@ -800,10 +800,8 @@ public Void visitNewClass(NewClassTree tree, AnnotatedTypeMirror p) {
  if (!TreeUtils.isStandaloneExpression(a)) {
  continue;
  }
- boolean oldShouldCache = shouldCache;
- shouldCache = false;
+
  AnnotatedTypeMirror t = getAnnotatedType(a);
- shouldCache = oldShouldCache;
  allInitialized &= (isInitialized(t) || isFbcBottom(t));
  }
  if (!allInitialized) {

checker/tests/nullness/Issue6623.java

@@ -4,13 +4,11 @@
 public class Issue6623 {
 
  public List<TargetOuter> getUserData(List<SrcOuter> input) {
- // Fixing issue #6623 will eliminate this warning.
  return input.stream()
  .map(
  c ->
  new TargetOuter(
  c.data().stream()
- // :: warning: (slow.typechecking)
  .map(
  inner ->
  new TargetInner(