extend tests

Author: RalfJung

tests/source/issue-3255.rs

@@ -1,5 +1,6 @@
 fn foo(){  
     if true {      // Sample comment
+                   // second-line comment
         1
     }
 }
@@ -24,3 +25,14 @@ fn foo(){
         1
     }
 }
+
+// This isn't ideal.
+fn foo(){
+    if true {     /* Sample
+                   * another line
+                   * another line
+                   * end
+                   */
+        1
+    }
+}

tests/target/issue-3255.rs

@@ -1,5 +1,6 @@
 fn foo() {
     if true { // Sample comment
+        // second-line comment
         1
     }
 }
@@ -23,3 +24,14 @@ fn foo() {
         1
     }
 }
+
+// This isn't ideal.
+fn foo() {
+    if true { /* Sample
+                   * another line
+                   * another line
+                   * end
+                   */
+        1
+    }
+}