Turn on overloaded strings in the doctests.

robrix · robrix · commit 58d819f81add · 2019-06-25T14:26:46.000-04:00
diff --git a/semantic-core/src/Analysis/Concrete.hs b/semantic-core/src/Analysis/Concrete.hs
@@ -210,3 +210,7 @@ data EdgeType
   | Slot Name
   | Value Concrete
   deriving (Eq, Ord, Show)
+
+
+-- $setup
+-- >>> :seti -XOverloadedStrings
