Add test reproducing ThisIsManta#49 ThisIsManta#54 and ThisIsManta#55

spec/bug-49/formattingOptions.json

@@ -0,0 +1,13 @@
+{
+    "insertColons": false,
+    "insertSemicolons": false,
+    "insertBraces": false,
+    "insertSpaceBeforeComment": true,
+    "insertSpaceAfterComment": true,
+    "insertParenthesisAroundIfCondition": true,
+    "insertLeadingZeroBeforeFraction": false,
+    "selectorSeparator": "\n",
+    "quoteChar": "\"",
+    "tabStopChar": "  ",
+    "alwaysUseZeroWithoutUnit": true
+}

spec/bug-49/input.styl

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+/*!
+ * Some licence
+ */
+@require "./file.styl"
+/**
+multi-line comment
+*/
+.class1, .class2
+  padding 1px // comment
+  margin 0px 5px 0px 5px
+  color alpha(red, 0.5)
+@media screen and (min-width 100px)// media comment
+  if (!condition) // if comment
+    @extend .class3
+  else // else comment
+    background blue
+
+.class // hello there
+div
+  width calc(100% / 3)
+
+.someClass
+
+  // todo implement this later
+
+.anotherClass
+  border 0
+
+// end of file comment

spec/bug-49/output.styl

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+/*!
+ * Some licence
+ */
+@require "./file.styl"
+
+/**
+multi-line comment
+*/
+.class1
+.class2
+  padding 1px // comment
+  margin 0 5px 0 5px
+  color alpha(red, .5)
+
+@media screen and (min-width 100px) // media comment
+  if (!condition) // if comment
+    @extend .class3
+  else // else comment
+    background blue
+
+.class // hello there
+div
+  width calc(100% / 3)
+
+.someClass
+
+  // todo implement this later
+
+.anotherClass
+  border 0
+
+// end of file comment