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/handlers/NamedParametersCompletionOnEqual.kt.after

@@ -4,5 +4,5 @@ fun paramFun() {}
 
 fun test() {
     // Type '=', completion should be finishied
-    foo(paramTest = <caret>)
+    foo(paramTest =<caret>)
 }

idea/idea-completion/testData/handlers/charFilter/NamedParameter1.kt

@@ -4,5 +4,5 @@ fun test() {
     foo(xxx = 10, <caret>)
 }
 
-// ELEMENT: yyy
+// ELEMENT: "yyy ="
 // CHAR: =

idea/idea-completion/testData/handlers/charFilter/NamedParameter1.kt.after

@@ -1,8 +1,8 @@
 fun foo(xxx: Int, yyy: Int)
 
 fun test() {
-    foo(xxx = 10, yyy = <caret>)
+    foo(xxx = 10, yyy =<caret>)
 }
 
-// ELEMENT: yyy
+// ELEMENT: "yyy ="
 // CHAR: =

idea/idea-completion/testData/handlers/charFilter/NamedParameter2.kt

@@ -4,5 +4,5 @@ fun test() {
     foo(xxx = 10, <caret>)
 }
 
-// ELEMENT: yyy
+// ELEMENT: "yyy ="
 // CHAR: ' '

idea/idea-completion/testData/handlers/charFilter/NamedParameter2.kt.after

@@ -1,8 +1,8 @@
 fun foo(xxx: Int, yyy: Int)
 
 fun test() {
-    foo(xxx = 10, yyy = <caret>)
+    foo(xxx = 10, yyy <caret>)
 }
 
-// ELEMENT: yyy
+// ELEMENT: "yyy ="
 // CHAR: ' '

idea/idea-completion/testData/handlers/smart/lambda/3.kt

@@ -4,4 +4,4 @@ fun bar() {
     foo(<caret>)
 }
 
-// ELEMENT: "{ Int -> ... }"
+// ELEMENT: "{ i -> ... }"

idea/idea-completion/testData/handlers/smart/lambda/3.kt.after

@@ -4,4 +4,4 @@ fun bar() {
     foo({ i -> <caret> })
 }
 
-// ELEMENT: "{ Int -> ... }"
+// ELEMENT: "{ i -> ... }"

idea/idea-completion/testData/handlers/smart/lambda/4.kt

@@ -5,4 +5,4 @@ fun bar() {
     foo(<caret>)
 }
 
-// ELEMENT: "{ String, StringBuilder -> ... }"
+// ELEMENT: "{ s, stringBuilder -> ... }"

idea/idea-completion/testData/handlers/smart/lambda/4.kt.after

@@ -5,4 +5,4 @@ fun bar() {
     foo({ s, stringBuilder -> <caret> })
 }
 
-// ELEMENT: "{ String, StringBuilder -> ... }"
+// ELEMENT: "{ s, stringBuilder -> ... }"