tests: apply official code style

#KT-38632 Fixed

idea/testData/intentions/loopToCallChain/firstOrNull/let.kt.after

@@ -3,8 +3,8 @@
 // IS_APPLICABLE_2: false
 fun foo(list: List<String>) {
     val <caret>result: String? = list
-            .firstOrNull { it.length > 0 }
-            ?.let { bar(it) }
+        .firstOrNull { it.length > 0 }
+        ?.let { bar(it) }
 }
 
 fun bar(s: String): String = s

idea/testData/intentions/loopToCallChain/firstOrNull/let2.kt.after

@@ -3,8 +3,8 @@
 // IS_APPLICABLE_2: false
 fun foo(list: List<String>) {
     val <caret>result: String? = list
-            .firstOrNull { it.length > 0 }
-            ?.let { it.substring(0, it.length - 1) }
+        .firstOrNull { it.length > 0 }
+        ?.let { it.substring(0, it.length - 1) }
 }
 
 fun bar(s: String): String = s

idea/testData/intentions/loopToCallChain/firstOrNull/letOrNotNull.kt.after

@@ -3,9 +3,9 @@
 // IS_APPLICABLE_2: false
 fun foo(list: List<String>) {
     val <caret>result = list
-            .firstOrNull { it.length > 0 }
-            ?.let { bar(it) }
-            ?: ""
+        .firstOrNull { it.length > 0 }
+        ?.let { bar(it) }
+        ?: ""
 }
 
 fun bar(s: String): String = s

idea/testData/intentions/loopToCallChain/firstOrNull/returnExpression.kt.after

@@ -3,6 +3,6 @@
 // IS_APPLICABLE_2: false
 fun foo(list: List<String>): Int? {
     <caret>return list
-            .firstOrNull { it.isNotEmpty() }
-            ?.length
+        .firstOrNull { it.isNotEmpty() }
+        ?.length
 }

idea/testData/intentions/loopToCallChain/firstOrNull/returnExpressionOrNotNull.kt.after

@@ -3,7 +3,7 @@
 // IS_APPLICABLE_2: false
 fun foo(list: List<String>): Int {
     <caret>return list
-            .firstOrNull { it.isNotEmpty() }
-            ?.length
-            ?: -1
+        .firstOrNull { it.isNotEmpty() }
+        ?.length
+        ?: -1
 }

idea/testData/intentions/loopToCallChain/firstOrNull/returnNotNullIfNone.kt.after

@@ -3,5 +3,5 @@
 // IS_APPLICABLE_2: false
 fun foo(list: List<String>): String {
     <caret>return list.firstOrNull { it.isNotEmpty() }
-            ?: ""
+        ?: ""
 }

idea/testData/intentions/loopToCallChain/firstOrNull/safeDotExpression.kt.after

@@ -3,6 +3,6 @@
 // IS_APPLICABLE_2: false
 fun foo(list: List<String?>) {
     val <caret>result: String? = list
-            .firstOrNull { it != "" }
-            ?.substring(1)
+        .firstOrNull { it != "" }
+        ?.substring(1)
 }