Remove need for synthetic accessor methods.

gson/src/main/java/com/google/gson/internal/UnsafeAllocator.java

@@ -111,7 +111,7 @@ public abstract class UnsafeAllocator {
    * throw an {@link java.lang.UnsupportedOperationException}
    * @param c instance of the class to be checked
    */
-  private static void assertInstantiable(Class<?> c) {
+  static void assertInstantiable(Class<?> c) {
     int modifiers = c.getModifiers();
     if (Modifier.isInterface(modifiers)) {
       throw new UnsupportedOperationException("Interface can't be instantiated! Interface name: " + c.getName());

gson/src/main/java/com/google/gson/internal/bind/TreeTypeAdapter.java

@@ -41,7 +41,7 @@ import java.lang.reflect.Type;
 public final class TreeTypeAdapter<T> extends TypeAdapter<T> {
   private final JsonSerializer<T> serializer;
   private final JsonDeserializer<T> deserializer;
-  private final Gson gson;
+  final Gson gson;
   private final TypeToken<T> typeToken;
   private final TypeAdapterFactory skipPast;
   private final GsonContextImpl context = new GsonContextImpl();

gson/src/main/java/com/google/gson/stream/JsonReader.java

@@ -1459,7 +1459,7 @@ public class JsonReader implements Closeable {
     return getClass().getSimpleName() + locationString();
   }
 
-  private String locationString() {
+  String locationString() {
     int line = lineNumber + 1;
     int column = pos - lineStart + 1;
     return " at line " + line + " column " + column + " path " + getPath();