diff --git a/tests/source/file-lines-1.rs b/tests/source/file-lines-1.rs
index fc13a9edd171..0164e30a854c 100644
--- a/tests/source/file-lines-1.rs
+++ b/tests/source/file-lines-1.rs
@@ -17,6 +17,7 @@ fn floaters() {
     {
         match x {
             PushParam => {
+                // comment
                 stack.push(mparams[match cur.to_digit(10) {
                                             Some(d) => d as usize - 1,
                                             None => return Err("bad param number".to_owned()),
diff --git a/tests/source/file-lines-2.rs b/tests/source/file-lines-2.rs
index 7812c7522393..6f44ec6e69d1 100644
--- a/tests/source/file-lines-2.rs
+++ b/tests/source/file-lines-2.rs
@@ -17,6 +17,7 @@ fn floaters() {
     {
         match x {
             PushParam => {
+                // comment
                 stack.push(mparams[match cur.to_digit(10) {
                                             Some(d) => d as usize - 1,
                                             None => return Err("bad param number".to_owned()),
diff --git a/tests/source/file-lines-3.rs b/tests/source/file-lines-3.rs
index a408fa3ccf6c..c4f3e21b1ae2 100644
--- a/tests/source/file-lines-3.rs
+++ b/tests/source/file-lines-3.rs
@@ -18,6 +18,7 @@ fn floaters() {
     {
         match x {
             PushParam => {
+                // comment
                 stack.push(mparams[match cur.to_digit(10) {
                                             Some(d) => d as usize - 1,
                                             None => return Err("bad param number".to_owned()),
diff --git a/tests/source/file-lines-4.rs b/tests/source/file-lines-4.rs
index 36b632c7df0a..83928bf6fecf 100644
--- a/tests/source/file-lines-4.rs
+++ b/tests/source/file-lines-4.rs
@@ -18,6 +18,7 @@ fn floaters() {
     {
         match x {
             PushParam => {
+                // comment
                 stack.push(mparams[match cur.to_digit(10) {
                                             Some(d) => d as usize - 1,
                                             None => return Err("bad param number".to_owned()),
diff --git a/tests/target/file-lines-1.rs b/tests/target/file-lines-1.rs
index a43f314a2420..2601ca9fc94a 100644
--- a/tests/target/file-lines-1.rs
+++ b/tests/target/file-lines-1.rs
@@ -17,6 +17,7 @@ fn floaters() {
     {
         match x {
             PushParam => {
+                // comment
                 stack.push(mparams[match cur.to_digit(10) {
                                             Some(d) => d as usize - 1,
                                             None => return Err("bad param number".to_owned()),
diff --git a/tests/target/file-lines-2.rs b/tests/target/file-lines-2.rs
index c889fc3fd665..bc25698c2ed0 100644
--- a/tests/target/file-lines-2.rs
+++ b/tests/target/file-lines-2.rs
@@ -12,6 +12,7 @@ fn floaters() {
     {
         match x {
             PushParam => {
+                // comment
                 stack.push(mparams[match cur.to_digit(10) {
                                             Some(d) => d as usize - 1,
                                             None => return Err("bad param number".to_owned()),
diff --git a/tests/target/file-lines-3.rs b/tests/target/file-lines-3.rs
index 754c7c879b01..fe465750ae11 100644
--- a/tests/target/file-lines-3.rs
+++ b/tests/target/file-lines-3.rs
@@ -13,6 +13,7 @@ fn floaters() {
     {
         match x {
             PushParam => {
+                // comment
                 stack.push(mparams[match cur.to_digit(10) {
                                             Some(d) => d as usize - 1,
                                             None => return Err("bad param number".to_owned()),
diff --git a/tests/target/file-lines-4.rs b/tests/target/file-lines-4.rs
index 36b632c7df0a..83928bf6fecf 100644
--- a/tests/target/file-lines-4.rs
+++ b/tests/target/file-lines-4.rs
@@ -18,6 +18,7 @@ fn floaters() {
     {
         match x {
             PushParam => {
+                // comment
                 stack.push(mparams[match cur.to_digit(10) {
                                             Some(d) => d as usize - 1,
                                             None => return Err("bad param number".to_owned()),