follow PugJs

src/test-data/pug-lexer/cases/block-code.pug

@@ -0,0 +1,12 @@
+-
+  list = ["uno", "dos", "tres",
+          "cuatro", "cinco", "seis"];
+//- Without a block, the element is accepted and no code is generated
+-
+each item in list
+  -
+    string = item.charAt(0)
+    
+      .toUpperCase() +
+    item.slice(1);
+  li= string