Completion of lambda parameters

Also changed policy for sorting of smart completion items in basic completion

 #KT-16800 Fixed
 #KT-12002 Fixed

idea/idea-completion/testData/smart/functionLiterals/2.kt

@@ -4,5 +4,7 @@ fun bar() {
     foo(<caret>)
 }
 
+// WITH_ORDER
 // EXIST: "{...}"
-// EXIST: "{ String -> ... }"
+// EXIST: "{ s -> ... }"
+// EXIST: "{ s: String -> ... }"