tests: apply official code style

#KT-38632 Fixed

idea/testData/refactoring/introduceLambdaParameter/multiline/multilineBinaryExpression.kt.after

@@ -1,8 +1,10 @@
 fun foo(i: Int) { }
 
-fun test(i: () -> Int = {
-    (1
-            + 2)
-}) {
+fun test(
+    i: () -> Int = {
+        (1
+                + 2)
+    }
+) {
     foo(i())
 }

idea/testData/refactoring/introduceLambdaParameter/multiline/multilineBinaryExpressionWithComments.kt.after

@@ -1,8 +1,10 @@
 fun foo(i: Int) { }
 
-fun test(i: () -> Int = {
-    (1 // abc
-            /*def*/ + 2)
-}) {
+fun test(
+    i: () -> Int = {
+        (1 // abc
+                /*def*/ + 2)
+    }
+) {
     foo(i())
 }

idea/testData/refactoring/introduceLambdaParameter/multiline/multilineNestedBinaryExpression1.kt.after

@@ -1,8 +1,10 @@
 fun foo(i: Int) { }
 
-fun test(i: () -> Int = {
-    (1
-            + 2 - 3)
-}) {
+fun test(
+    i: () -> Int = {
+        (1
+                + 2 - 3)
+    }
+) {
     foo(i())
 }

idea/testData/refactoring/introduceLambdaParameter/multiline/multilineNestedBinaryExpression2.kt.after

@@ -1,8 +1,10 @@
 fun foo(i: Int) { }
 
-fun test(i: () -> Int = {
-    (1 + 2
-            - 3)
-}) {
+fun test(
+    i: () -> Int = {
+        (1 + 2
+                - 3)
+    }
+) {
     foo(i())
 }