Smart completion: lambda items

idea/testData/completion/smart/Lambda1.kt

@@ -0,0 +1,8 @@
+fun foo(p: () -> Unit){}
+
+fun bar() {
+    foo(<caret>)
+}
+
+// EXIST: "{...}"
+// ABSENT: "{ () -> ... }"

idea/testData/completion/smart/Lambda2.kt

@@ -0,0 +1,8 @@
+fun foo(p: (String) -> Unit){}
+
+fun bar() {
+    foo(<caret>)
+}
+
+// EXIST: "{...}"
+// EXIST: "{ String -> ... }"

idea/testData/completion/smart/Lambda3.kt

@@ -0,0 +1,8 @@
+fun foo(p: (String, Int) -> Unit){}
+
+fun bar() {
+    foo(<caret>)
+}
+
+// ABSENT: "{...}"
+// EXIST: "{ (String, Int) -> ... }"

idea/testData/completion/smart/Lambda4.kt

@@ -0,0 +1,10 @@
+fun foo(p: (String) -> Unit){}
+fun foo(p: (Int) -> Unit){}
+
+fun bar() {
+    foo(<caret>)
+}
+
+// ABSENT: "{...}"
+// EXIST: "{ String -> ... }"
+// EXIST: "{ Int -> ... }"