Back to getOrDefault test

The main purpose was to test getOrDefault w/ non/null value does not
bother the resolution. To be aligned with test file
mapGetOrDefault_nullable.kt, this one should test getOrDefault too.
All we needed was // WITH_STDLIB

analysis/analysis-api/testData/standalone/source/mapGetOrDefault.kt

@@ -1,3 +1,5 @@
+// WITH_STDLIB
+
 fun box(map: MutableMap<String, String>) {
-    map.g<caret>et("key")
+    map.get<caret>OrDefault("key", "value")
 }