KT-10322, KT-10646, KT-10647:

- update diagnostic to (supposedly) more useful
- also report IMPLICIT_CAST_TO_ANY if expected type is DONT_CARE
 (effectively "no expected type" for lambda expression).

compiler/testData/diagnostics/testsWithStdLib/implicitCastToAny.txt

@@ -0,0 +1,6 @@
+package
+
+public var longWords: kotlin.Int
+public val smallWords: java.util.HashSet<kotlin.String>
+public fun test1(/*0*/ word: kotlin.String): kotlin.Any
+public fun test2(/*0*/ word: kotlin.String): kotlin.Any