Replace defaults for JsInterop annotations' params.

Updates the default values for JsInterop annontations' params
to be '<auto>' instead of empty.

This change is no op as these values are never read by compiler.
It is only useful for documentation purposes.

Change-Id: Ic725a6016196247225a9f4e8935a7631da92c835
diff --git a/user/src/jsinterop/annotations/JsMethod.java b/user/src/jsinterop/annotations/JsMethod.java
index d8a0116..3a6a6f4 100644
--- a/user/src/jsinterop/annotations/JsMethod.java
+++ b/user/src/jsinterop/annotations/JsMethod.java
@@ -37,11 +37,11 @@
    * Customizes the name of the member in generated JavaScript. If not provided, the Java name will
    * be used.
    */
-  String name() default "";
+  String name() default "<auto>";
 
   /**
    * Customizes the namespace of the static member in generated JavaScript. If none is provided,
    * namespace is the enclosing class' fully qualified JavaScript name.
    */
-  String namespace() default "";
+  String namespace() default "<auto>";
 }
diff --git a/user/src/jsinterop/annotations/JsProperty.java b/user/src/jsinterop/annotations/JsProperty.java
index 2705b58..3d67e0c 100644
--- a/user/src/jsinterop/annotations/JsProperty.java
+++ b/user/src/jsinterop/annotations/JsProperty.java
@@ -52,11 +52,11 @@
    * <li>if it is field, the simple Java name will be used.
    * <li>if it is a method, the name will be generated based on JavaBean conventions.
    */
-  String name() default "";
+  String name() default "<auto>";
 
   /**
    * Customizes the namespace of the static member in generated JavaScript. If none is provided,
    * namespace is the enclosing class' fully qualified JavaScript name.
    */
-  String namespace() default "";
+  String namespace() default "<auto>";
 }
diff --git a/user/src/jsinterop/annotations/JsType.java b/user/src/jsinterop/annotations/JsType.java
index 52eeefa..7a94109 100644
--- a/user/src/jsinterop/annotations/JsType.java
+++ b/user/src/jsinterop/annotations/JsType.java
@@ -60,12 +60,12 @@
    * Customizes the name of the type in generated JavaScript. If not provided, the simple Java name
    * will be used.
    */
-  String name() default "";
+  String name() default "<auto>";
 
   /**
    * Customizes the namespace of the type in generated JavaScript.
    */
-  String namespace() default "";
+  String namespace() default "<auto>";
 
   /**
    * Set to {@code true}, this JsType is a native JavaScript type.