[LL FIR] rename testdata to testData to avoid copyright generation

We exclude testData pattern from copyright scope

analysis/low-level-api-fir/testData/lazyResolve/localNestedClass.kt

@@ -0,0 +1,24 @@
+open class TopLevelClass {
+    open fun foo(i: Int) {
+
+    }
+
+    open fun boo(b: String) {
+
+    }
+}
+
+open class AnotherTopLevelClass : TopLevelClass() {
+    override fun foo(i: Int) {
+
+    }
+}
+
+fun reso<caret>lveMe() {
+    class LocalClass : AnotherTopLevelClass() {
+        override fun foo(i: Int) {
+        }
+
+        class NestedLocalClass
+    }
+}