Fixed formatter for function expression

idea/testData/formatter/FunctionExpression.after.kt

@@ -0,0 +1,34 @@
+val a = fun () {
+}
+val b = fun test() {
+}
+
+val c = fun() {
+}
+val c = fun() = 4
+
+val c = fun() =
+        4
+
+val c = fun() {
+}
+val c = fun() = 4
+
+fun test() = fun test() = 4
+
+fun test() {
+    test(fun test() {
+    })
+    test(fun test() = 5)
+
+    test(fun test() = fun test(a: Int) = 2)
+
+    2.(fun test() {
+    })()
+
+    (fun() = 4)
+    (fun() {
+    })
+
+    test(fun test() = 4)
+}

idea/testData/formatter/FunctionExpression.kt

@@ -0,0 +1,27 @@
+val a = fun () {}
+val b = fun test() {}
+
+val c=fun(){}
+val c=fun()=4
+
+val c=fun()=
+        4
+
+val c   =   fun()   {}
+val c   =    fun()    =  4
+
+fun test() = fun test() = 4
+
+fun test() {
+    test(fun test() {})
+    test(fun test() = 5)
+
+    test(fun test() = fun test(a: Int) = 2)
+
+    2.(fun test() {})()
+
+    (fun()=4)
+    (fun(){})
+
+    test(    fun     test     (    ) = 4   )
+}