Work in progress on consistent UAST structure

plugins/uast-kotlin/testData/DefaultParameterValues.kt

@@ -0,0 +1,2 @@
+fun foo(a: Int = 1, foo: String? = null) {
+}

plugins/uast-kotlin/testData/DefaultParameterValues.log.txt

@@ -0,0 +1,10 @@
+UFile (package = )
+    UClass (name = DefaultParameterValuesKt)
+        UAnnotationMethod (name = foo)
+            UParameter (name = a)
+                UAnnotation (fqName = null)
+                ULiteralExpression (value = 1)
+            UParameter (name = foo)
+                UAnnotation (fqName = org.jetbrains.annotations.Nullable)
+                ULiteralExpression (value = null)
+            UBlockExpression

plugins/uast-kotlin/testData/DefaultParameterValues.render.txt

@@ -0,0 +1,4 @@
+public final class DefaultParameterValuesKt {
+    public static final fun foo(a: int, foo: java.lang.String) : void {
+    }
+}