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

We exclude testData pattern from copyright scope

analysis/low-level-api-fir/testData/getOrBuildFir/calls/callArgumentScript.txt

@@ -0,0 +1,19 @@
+KT element: KtValueArgument
+FIR element: FirConstExpressionImpl
+FIR source kind: KtRealSourceElementKind
+
+FIR element rendered:
+Int(1)
+
+FIR FILE:
+FILE: [ResolvedTo(IMPORTS)] callArgumentScript.kts
+    context(<script>@R|kotlin/script/templates/standard/ScriptTemplateWithArgs|)
+    SCRIPT: [ResolvedTo(TYPES)] 
+        [ResolvedTo(RAW_FIR)] lval args: R|kotlin/Array<kotlin/String>|
+
+        public final [ResolvedTo(CONTRACTS)] fun y([ResolvedTo(CONTRACTS)] a: R|kotlin/Int|): R|kotlin/Unit| {
+        }
+
+        public final [ResolvedTo(BODY_RESOLVE)] fun x(): R|kotlin/Unit| {
+            R|/y|(Int(1))
+        }