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

We exclude testData pattern from copyright scope

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

@@ -0,0 +1,11 @@
+fun resolve<caret>Me() {
+    receive(A(42))
+}
+
+fun receive(value: A){}
+
+class A {
+    constructor(x: Int) {
+        val a = x
+    }
+}