Add a test for rust-lang#2985

Author: YaLTeR

tests/source/issue-2985.rs

@@ -0,0 +1,35 @@
+// rustfmt-indent_style: Visual
+fn foo() {
+    {
+        {
+            let extra_encoder_settings = extra_encoder_settings.iter()
+                                                               .filter_map(|&(name, value)| {
+                                                         value.split()
+                                                              .next()
+                                                              .something()
+                                                              .something2()
+                                                              .something3()
+                                                              .something4()
+                                                     });
+            let extra_encoder_settings = extra_encoder_settings.iter()
+                                                               .filter_map(|&(name, value)| {
+                                                                               value.split()
+                                                                                    .next()
+                                                                                    .something()
+                                                                                    .something2()
+                                                                                    .something3()
+                                                                                    .something4()
+                                                                           })
+                                                               .something();
+            if let Some(subpod) = pod.subpods.iter().find(|s| {
+                                                              !s.plaintext
+                                                                .as_ref()
+                                                                .map(String::as_ref)
+                                                                .unwrap_or("")
+                                                                .is_empty()
+                                                          }) {
+                do_something();
+            }
+        }
+    }
+}

tests/target/issue-2985.rs

@@ -0,0 +1,35 @@
+// rustfmt-indent_style: Visual
+fn foo() {
+    {
+        {
+            let extra_encoder_settings = extra_encoder_settings.iter()
+                                                               .filter_map(|&(name, value)| {
+                                                                               value.split()
+                                                                                    .next()
+                                                                                    .something()
+                                                                                    .something2()
+                                                                                    .something3()
+                                                                                    .something4()
+                                                                           });
+            let extra_encoder_settings = extra_encoder_settings.iter()
+                                                               .filter_map(|&(name, value)| {
+                                                                               value.split()
+                                                                                    .next()
+                                                                                    .something()
+                                                                                    .something2()
+                                                                                    .something3()
+                                                                                    .something4()
+                                                                           })
+                                                               .something();
+            if let Some(subpod) = pod.subpods.iter().find(|s| {
+                                                              !s.plaintext
+                                                                .as_ref()
+                                                                .map(String::as_ref)
+                                                                .unwrap_or("")
+                                                                .is_empty()
+                                                          }) {
+                do_something();
+            }
+        }
+    }
+}