Apply indent of continuation call start to its children

#KT-15099 Fixed

idea/testData/formatter/KT15099.after.kt

@@ -0,0 +1,8 @@
+fun test() {
+    Single.just(Object())
+            .map {
+                it
+            }.map {
+                it // The code unexpectedly shifts to the left
+            }
+}

idea/testData/formatter/KT15099.kt

@@ -0,0 +1,8 @@
+fun test() {
+    Single.just(Object())
+    .map {
+    it
+    }.map {
+    it // The code unexpectedly shifts to the left
+    }
+}

idea/testData/formatter/KT20362.after.kt

@@ -1,6 +1,6 @@
 val ret = (DB.Article innerJoin DB.Project).slice(DB.Article.project, DB.Article.project.count()).select {
-            filterBlogs(params)
-        }.groupBy(DB.Article.project).map {
-            val count = it[DB.Article.project.count()]
-            val project = it[DB.Article.team.count()]
-        }
+    filterBlogs(params)
+}.groupBy(DB.Article.project).map {
+    val count = it[DB.Article.project.count()]
+    val project = it[DB.Article.team.count()]
+}