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

We exclude testData pattern from copyright scope

analysis/low-level-api-fir/testData/lazyResolve/complexLocalHierarchyScript.kts

@@ -0,0 +1,12 @@
+package one
+
+interface NonLocalInterface
+
+fun resolv<caret>eMe() {
+    open class A : B()
+    class B : NonLocalInterface {
+        inner class C : A() {
+
+        }
+    }
+}