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

We exclude testData pattern from copyright scope

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

@@ -0,0 +1,10 @@
+annotation class Anno(val s: String)
+
+class A @Deprecated("constructor") @Anno("constructor") co<caret>nstructor(
+    @param:[Deprecated("param") Anno("param")]
+    @field:[Deprecated("field") Anno("field")]
+    @property:Deprecated("property") @property:Anno("property")
+    val i: Int,
+    @Deprecated("parameter") @Anno("parameter")
+    b: String
+)