Gizmo2: add convenient default methods to ClassOutput

- these methods accept FQCN instead of ClassDesc

Author: mkouba

src/main/java/io/quarkus/gizmo2/ClassOutput.java

@@ -10,6 +10,18 @@
  * A container for created classes with a specific output strategy.
  */
 public interface ClassOutput {
+    
+    /**
+     * Add a new class.
+     *
+     * @param name the fully qualified (dot-separated) binary class name
+     * @param builder the
+     * @return the descriptor
+     */
+    default ClassDesc class_(String name, Consumer<ClassCreator> builder) {
+        return class_(ClassDesc.of(name), builder);
+    }
+    
     /**
      * Add a new class.
      *
@@ -19,6 +31,17 @@ public interface ClassOutput {
      */
     ClassDesc class_(ClassDesc desc, Consumer<ClassCreator> builder);
 
+    /**
+     * Add a new interface.
+     *
+     * @param name the fully qualified (dot-separated) binary class name
+     * @param builder the
+     * @return the descriptor
+     */
+    default ClassDesc interface_(String name, Consumer<InterfaceCreator> builder) {
+        return interface_(ClassDesc.of(name), builder);
+    }
+    
     /**
      * Add a new interface.
      *