Rename new marker interfaces

TryOnError -> RxDogTagErrorReceiver
DeliverModifiedException -> RxDogTagModifiedExceptionReceiver

rxdogtag/src/main/java/com/uber/rxdogtag/DogTagCompletableObserver.java

@@ -57,7 +57,7 @@ public void onSubscribe(Disposable d) {
   @Override
   public void onError(Throwable e) {
     if (delegate instanceof RxDogTagErrorReceiver) {
-      if (delegate instanceof RxDogTagModifiedExceptionReceiver) {
+      if (delegate instanceof RxDogTagTaggedExceptionReceiver) {
         delegate.onError(createException(config, t, e, null));
       } else if (config.guardObserverCallbacks) {
         guardedDelegateCall(e2 -> reportError(config, t, e2, "onError"), () -> delegate.onError(e));

rxdogtag/src/main/java/com/uber/rxdogtag/DogTagMaybeObserver.java

@@ -70,7 +70,7 @@ public void onSuccess(T t) {
   @Override
   public void onError(Throwable e) {
     if (delegate instanceof RxDogTagErrorReceiver) {
-      if (delegate instanceof RxDogTagModifiedExceptionReceiver) {
+      if (delegate instanceof RxDogTagTaggedExceptionReceiver) {
         delegate.onError(createException(config, t, e, null));
       } else if (config.guardObserverCallbacks) {
         guardedDelegateCall(e2 -> reportError(config, t, e2, "onError"), () -> delegate.onError(e));

rxdogtag/src/main/java/com/uber/rxdogtag/DogTagObserver.java

@@ -68,7 +68,7 @@ public void onNext(T t) {
   @Override
   public void onError(Throwable e) {
     if (delegate instanceof RxDogTagErrorReceiver) {
-      if (delegate instanceof RxDogTagModifiedExceptionReceiver) {
+      if (delegate instanceof RxDogTagTaggedExceptionReceiver) {
         delegate.onError(createException(config, t, e, null));
       } else if (config.guardObserverCallbacks) {
         guardedDelegateCall(e2 -> reportError(config, t, e2, "onError"), () -> delegate.onError(e));

rxdogtag/src/main/java/com/uber/rxdogtag/DogTagSingleObserver.java

@@ -69,7 +69,7 @@ public void onSuccess(T t) {
   @Override
   public void onError(Throwable e) {
     if (delegate instanceof RxDogTagErrorReceiver) {
-      if (delegate instanceof RxDogTagModifiedExceptionReceiver) {
+      if (delegate instanceof RxDogTagTaggedExceptionReceiver) {
         delegate.onError(createException(config, t, e, null));
       } else if (config.guardObserverCallbacks) {
         guardedDelegateCall(e2 -> reportError(config, t, e2, "onError"), () -> delegate.onError(e));

rxdogtag/src/main/java/com/uber/rxdogtag/DogTagSubscriber.java

@@ -74,7 +74,7 @@ public void onNext(T t) {
   @Override
   public void onError(Throwable e) {
     if (delegate instanceof RxDogTagErrorReceiver) {
-      if (delegate instanceof RxDogTagModifiedExceptionReceiver) {
+      if (delegate instanceof RxDogTagTaggedExceptionReceiver) {
         delegate.onError(createException(config, t, e, null));
       } else if (config.guardObserverCallbacks) {
         guardedDelegateCall(e2 -> reportError(config, t, e2, "onError"), () -> delegate.onError(e));

rxdogtag/src/main/java/com/uber/rxdogtag/RxDogTagTaggedExceptionReceiver.java

@@ -0,0 +1,19 @@
+package com.uber.rxdogtag;
+
+import io.reactivex.exceptions.OnErrorNotImplementedException;
+
+/**
+ * A marker type to indicate that RxDogTag's should pass the decorated stacktrace to
+ * {@link #onError(Throwable)}. Note that this will always be tried directly, and no guarded
+ * delegate behavior will be attempted even if
+ * {@link RxDogTag.Builder#guardObserverCallbacks(boolean)} is enabled in configuration.
+ *
+ * <p><em>NOTE:</em> RxDogTag exceptions are always
+ * {@link OnErrorNotImplementedException OnErrorNotImplementedExceptions}, as these have special
+ * behavior as an escape hatch in RxJava internals. This exception will have no "cause" property if
+ * the original exception was not already an {@link OnErrorNotImplementedException}. If it was,
+ * which is unusual, it is reused with its original cause (if any) and has its stacktrace modified.
+ */
+public interface RxDogTagTaggedExceptionReceiver extends RxDogTagErrorReceiver {
+
+}