"Add non-null asserted (!!) call": Fix for array access expression (KT-27071)

^KT-27071 Fixed

idea/testData/quickfix/addExclExclCall/array4.kt

@@ -0,0 +1,7 @@
+// "Add non-null asserted (!!) call" "true"
+// SHOULD_BE_AVAILABLE_AFTER_EXECUTION
+// ERROR: Only safe (?.) or non-null asserted (!!.) calls are allowed on a nullable receiver of type Array<String?>?
+
+fun foo(a: Array<String?>?): String {
+    return <caret>a[0]
+}