Address review comments

Author: hvitved

ruby/ql/lib/codeql/ruby/ast/Constant.qll

@@ -128,6 +128,11 @@ class ConstantValue extends TConstantValue {
     or
     result = ":" + this.getSymbol()
     or
+    exists(string s, string flags |
+      this.isRegExpWithFlags(s, flags) and
+      result = "/" + s + "/" + flags
+    )
+    or
     result = this.getBoolean().toString()
     or
     this.isNil() and result = "nil"

ruby/ql/lib/codeql/ruby/dataflow/internal/DataFlowPublic.qll

@@ -203,7 +203,7 @@ class Content extends TContent {
 
 /** Provides different sub classes of `Content`. */
 module Content {
-  /** An element in an collection, for example an element in array or in a hash. */
+  /** An element in a collection, for example an element in an array or in a hash. */
   class ElementContent extends Content, TElementContent { }
 
   /** An element in a collection at a known index. */