Clean the code

compiler/testData/psi/FunctionWithMultilineContract.kt

@@ -10,4 +10,4 @@ fun baz(num: Int?, element: MyElement, block: () -> Unit): Int contract [
         return 1;
     }
     return 0
-}
+}

compiler/testData/psi/FunctionWithTypeConstraintsAndContract.kt

@@ -9,4 +9,4 @@ fun someFunctionWithTypeConstraints<T, E>(arg: E?, block: () -> T): String
     block()
     arg ?: throw NullArgumentException()
     return "some string"
-}
+}

compiler/testData/psi/SimpleFunctionWithContract.kt

@@ -1,3 +1,3 @@
 fun foo(s: String?) contract [returns() implies (s != null)] {
     s ?: throw NullArgumentException()
-}
+}