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/AfterEmptyArgument.kt

@@ -4,7 +4,7 @@ fun bar(pInt: Int, pString: String) {
     foo(param2 = , <caret>)
 }
 
-// EXIST: { lookupString: "param1", itemText: "param1 =" }
-// EXIST: { lookupString: "param3", itemText: "param3 =" }
+// EXIST: { lookupString: "param1 =", itemText: "param1 =" }
+// EXIST: { lookupString: "param3 =", itemText: "param3 =" }
 // ABSENT: param2
 // NOTHING_ELSE

idea/idea-completion/testData/smart/AfterNamedArgument.kt

@@ -4,7 +4,7 @@ fun bar(pInt: Int, pString: String) {
     foo(param2 = 1, <caret>)
 }
 
-// EXIST: { lookupString: "param1", itemText: "param1 =" }
-// EXIST: { lookupString: "param3", itemText: "param3 =" }
+// EXIST: { lookupString: "param1 =", itemText: "param1 =" }
+// EXIST: { lookupString: "param3 =", itemText: "param3 =" }
 // ABSENT: param2
 // NOTHING_ELSE

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 -> ... }"

idea/idea-completion/testData/smart/functionLiterals/3.kt

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

idea/idea-completion/testData/smart/functionLiterals/5.kt

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

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

@@ -0,0 +1,11 @@
+fun foo(p: (String, Int) -> Unit){}
+fun foo(p: (Char, xx: Any) -> Unit){}
+
+fun bar() {
+    foo(<caret>)
+}
+
+// ABSENT: "{ s, i -> ... }"
+// ABSENT: "{ c, xx -> ... }"
+// EXIST: "{ String, Int -> ... }"
+// EXIST: "{ Char, xx -> ... }"

idea/idea-completion/testData/smart/functionLiterals/OutsideCallParenthesis1.kt

@@ -1,8 +1,10 @@
-fun foo(p: Int, handler: (String, Char) -> Unit){}
+fun foo(p: Int, handler: (String, xx: Char) -> Unit){}
 
 fun bar(handler: (String, Char) -> Unit) {
     foo(1)<caret>
 }
 
-// EXIST: "{ String, Char -> ... }"
+// WITH_ORDER
+// EXIST: "{ s, xx -> ... }"
+// EXIST: "{ s: String, xx: Char -> ... }"
 // ABSENT: handler

idea/idea-completion/testData/smart/functionLiterals/OutsideCallParenthesis2.kt

@@ -5,5 +5,6 @@ fun bar(p: String.(Int) -> Unit) {
 }
 
 // EXIST: "{...}"
-// EXIST: "{ Int -> ... }"
+// EXIST: "{ i -> ... }"
+// EXIST: "{ i: Int -> ... }"
 // ABSENT: p

idea/idea-completion/testData/smart/functionLiterals/OutsideCallParenthesis3.kt

@@ -4,5 +4,6 @@ fun bar(handler: (String, Char) -> Unit) {
     foo <caret>
 }
 
-// EXIST: "{ String, Char -> ... }"
+// EXIST: "{ s, c -> ... }"
+// EXIST: "{ s: String, c: Char -> ... }"
 // ABSENT: handler

idea/idea-completion/testData/smart/functionLiterals/OutsideCallParenthesis4.kt

@@ -4,5 +4,6 @@ fun bar(handler: (String, Char) -> Unit) {
     "".foo <caret>
 }
 
-// EXIST: "{ String, Char -> ... }"
+// EXIST: "{ s, c -> ... }"
+// EXIST: "{ s: String, c: Char -> ... }"
 // ABSENT: handler

idea/idea-completion/testData/smart/functionLiterals/OutsideCallParenthesis5.kt

@@ -4,5 +4,6 @@ fun bar(handler: (String, Char) -> Unit) {
     "" foo <caret>
 }
 
-// EXIST: "{ String, Char -> ... }"
+// EXIST: "{ s, c -> ... }"
+// EXIST: "{ s: String, c: Char -> ... }"
 // EXIST: handler

idea/idea-completion/testData/smart/functionLiterals/OutsideCallParenthesis6.kt

@@ -4,6 +4,7 @@ fun bar(handler: (String, Char) -> Unit) {
     foo(1)<caret>
 }
 
-// EXIST: "{ String, Char -> ... }"
+// EXIST: "{ s, c -> ... }"
+// EXIST: "{ s: String, c: Char -> ... }"
 // ABSENT: null
 // ABSENT: handler

idea/idea-completion/testData/smart/functionLiterals/OutsideCallParenthesis7.kt

@@ -4,5 +4,6 @@ fun bar(handler: (String, Char) -> Unit) {
     foo() <caret>
 }
 
-// EXIST: "{ String, Char -> ... }"
+// EXIST: "{ s, c -> ... }"
+// EXIST: "{ s: String, c: Char -> ... }"
 // ABSENT: handler

idea/idea-completion/testData/smart/functionLiterals/OutsideCallParenthesis8.kt

@@ -4,5 +4,6 @@ fun bar(handler: (String, Char) -> Unit) {
     foo <caret>
 }
 
-// EXIST: "{ String, Char -> ... }"
+// EXIST: "{ s, c -> ... }"
+// EXIST: "{ s: String, c: Char -> ... }"
 // ABSENT: handler

idea/idea-completion/testData/smart/functionLiterals/OutsideCallParenthesisAndVararg1.kt

@@ -4,5 +4,6 @@ fun bar(handler: (String, Char) -> Unit) {
     foo() <caret>
 }
 
-// EXIST: "{ String, Char -> ... }"
+// EXIST: "{ s, c -> ... }"
+// EXIST: "{ s: String, c: Char -> ... }"
 // ABSENT: handler

idea/idea-completion/testData/smart/functionLiterals/OutsideCallParenthesisAndVararg2.kt

@@ -4,5 +4,6 @@ fun bar(handler: (String, Char) -> Unit) {
     foo(1, 2) <caret>
 }
 
-// EXIST: "{ String, Char -> ... }"
+// EXIST: "{ s, c -> ... }"
+// EXIST: "{ s: String, c: Char -> ... }"
 // ABSENT: handler

idea/idea-completion/testData/smart/lambdaSignature/ExplicitParameterTypesRequired.kt

@@ -0,0 +1,11 @@
+fun foo(p: (String, Int) -> Unit){}
+fun foo(p: (Char, xx: Any) -> Unit){}
+
+fun bar() {
+    foo { <caret> }
+}
+
+// EXIST: "String, Int ->"
+// EXIST: "Char, xx ->"
+// ABSENT: "s, i ->"
+// ABSENT: "c, xx ->"

idea/idea-completion/testData/smart/lambdaSignature/MultipleParameters.kt

@@ -0,0 +1,7 @@
+fun foo(p: Int) {
+    "abc".fold(1) { <caret> }
+}
+
+// EXIST: p
+// EXIST: "acc: Int, c: Char ->"
+// EXIST: "acc, c ->"

idea/idea-completion/testData/smart/lambdaSignature/NotAfterComma.kt

@@ -0,0 +1,5 @@
+fun foo(p: Int) {
+    "abc".fold(1) { acc, <caret> }
+}
+
+// NOTHING_ELSE

idea/idea-completion/testData/smart/lambdaSignature/NotInBody.kt

@@ -0,0 +1,7 @@
+fun foo(p: Int) {
+    "abc".fold(1) { acc, c -> <caret> }
+}
+
+// EXIST: p
+// ABSENT: "acc: Int, c: Char ->"
+// ABSENT: "acc, c ->"

idea/idea-completion/testData/smart/lambdaSignature/SingleParameter.kt

@@ -0,0 +1,7 @@
+fun foo(p: Boolean) {
+    "abc".filter { <caret> }
+}
+
+// EXIST: p
+// EXIST: "c ->"
+// EXIST: "c: Char ->"