Fix formatting in some of test data files.

Adapted from https://github.com/develar/kotlin/commit/a9e0a42fb1347fa8e21c86b5a073ef8a7c873da0.

js/js.translator/testFiles/expression/function/cases/functionLiteralAsLastParameter.kt

@@ -1,14 +1,14 @@
 package foo
 
-fun f(a: (Int) -> Int) =  a(1)
+fun f(a: (Int) -> Int) = a(1)
 
-fun box() : Boolean {
+fun box(): Boolean {
 
     if (f() {
         it + 2
     } != 3) return false
 
-    if (f() {(a : Int) -> a * 300} != 300) return false;
+    if (f() {(a: Int) -> a * 300} != 300) return false;
 
     return true
 }