[Analysis API] fix typo in testdata filenames

analysis/analysis-api/testData/symbols/singleSymbolByPsi/errors/anonymousObjectInInvalidPosition.kt

@@ -0,0 +1,8 @@
+// DO_NOT_CHECK_NON_PSI_SYMBOL_RESTORE
+private val _commonSettingsLazy: A = null = ob<caret>ject : A<Int> {
+    override fun x() {}
+}
+
+interface A<T> {
+    fun x()
+}