[FIR] Insert fake source for FIR for array access temporaries

compiler/fir/raw-fir/light-tree2fir/tests/org/jetbrains/kotlin/fir/lightTree/PathWalker.kt

@@ -13,6 +13,7 @@ fun String.walkTopDown(f: (File) -> Unit) {
         if (file.isDirectory) continue
         if (file.path.contains("kotlin-native") ||
             file.path.contains("testData") ||
+            file.path.contains("testdata") ||
             file.path.contains("resources")) continue
         if (file.extension != "kt") continue
 

compiler/fir/raw-fir/raw-fir.common/src/org/jetbrains/kotlin/fir/builder/BaseFirBuilder.kt

@@ -802,7 +802,7 @@ abstract class BaseFirBuilder<T>(val baseSession: FirSession, val context: Conte
 
             val arrayVariable = generateTemporaryVariable(
                 baseModuleData,
-                array?.toFirSourceElement(),
+                array?.toFirSourceElement(KtFakeSourceElementKind.ArrayAccessNameReference),
                 name = SpecialNames.ARRAY,
                 initializer = arrayReceiver,
             ).also { statements += it }