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

We exclude testData pattern from copyright scope

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

@@ -0,0 +1,15 @@
+enum class X {
+    A
+}
+
+annotation class Anno(val args: A.X)
+
+class B {
+    @Anno(X.A)
+    fun resolve<caret>Me() {
+    }
+
+    @Anno(X.A)
+    fun foo() {
+    }
+}