Lambda to anonymous function: use callable builder (KT-7710)

idea/testData/intentions/lambdaToAnonymousFunction/argument.kt.after

@@ -1,5 +1,7 @@
 fun foo(f: (Int) -> String) {}
 
 fun test() {
-    foo(fun(it: Int): String { return "" })
+    foo(fun(it: Int): String {
+        return ""
+    })
 }

idea/testData/intentions/lambdaToAnonymousFunction/explicitParameterName.kt.after

@@ -1,5 +1,7 @@
 fun bar(f: (Int, Int) -> String) {}
 
 fun test() {
-    bar(fun(i: Int, j: Int): String { return "$i$j" })
+    bar(fun(i: Int, j: Int): String {
+        return "$i$j"
+    })
 }

idea/testData/intentions/lambdaToAnonymousFunction/extention1.kt.after

@@ -2,5 +2,7 @@ class Foo
 fun bar(f: Foo.() -> Unit) {}
 
 fun main(args: Array<String>) {
-    bar(fun Foo.() {})
+    bar(fun Foo.() {
+
+    })
 }

idea/testData/intentions/lambdaToAnonymousFunction/extention2.kt.after

@@ -2,5 +2,7 @@ class Foo
 fun baz(f: Foo.(i: Int, j: Int) -> Int) {}
 
 fun main(args: Array<String>) {
-    baz(fun Foo.(i: Int, j: Int): Int { return i + j })
+    baz(fun Foo.(i: Int, j: Int): Int {
+        return i + j
+    })
 }

idea/testData/intentions/lambdaToAnonymousFunction/hasReturn1.kt.after

@@ -1,5 +1,7 @@
 fun foo(f: (Int) -> String) {}
 
 fun test() {
-    foo(fun(it: Int): String { return "$it" })
+    foo(fun(it: Int): String {
+        return "$it"
+    })
 }

idea/testData/intentions/lambdaToAnonymousFunction/implicitParameterName.kt.after

@@ -1,5 +1,7 @@
 fun foo(f: (Int) -> String) {}
 
 fun test() {
-    foo(fun(it: Int): String { return "$it" })
+    foo(fun(it: Int): String {
+        return "$it"
+    })
 }

idea/testData/intentions/lambdaToAnonymousFunction/namedArgument.kt.after

@@ -1,5 +1,7 @@
 fun baz(name: String, f: (Int) -> String) {}
 
 fun test() {
-    baz(name = "", f = fun(it: Int): String { return "$it" })
+    baz(name = "", f = fun(it: Int): String {
+        return "$it"
+    })
 }

idea/testData/intentions/lambdaToAnonymousFunction/noParameter.kt.after

@@ -1,5 +1,7 @@
 fun foo(f: () -> String) {}
 
 fun test() {
-    foo(fun(): String { return "" })
+    foo(fun(): String {
+        return ""
+    })
 }