treat function literals without value argument list

as without arguments by default

compiler/testData/diagnostics/tests/functionLiterals/functionLiteralWithoutArgumentList.kt

@@ -0,0 +1,8 @@
+class TypeOf<T>(t: T)
+
+fun <T> id(t: T) = t
+
+fun foo() {
+    val i = id { 22 } //type inference error: no information for parameter
+    TypeOf(i): TypeOf<()->Int>
+}