-noSrcLoc = UnhelpfulLoc FSLIT("<no location info>")
-generatedSrcLoc = UnhelpfulLoc FSLIT("<compiler-generated code>")
-interactiveSrcLoc = UnhelpfulLoc FSLIT("<interactive session>")
+noSrcLoc = UnhelpfulLoc (fsLit "<no location info>")
+generatedSrcLoc = UnhelpfulLoc (fsLit "<compiler-generated code>")
+interactiveSrcLoc = UnhelpfulLoc (fsLit "<interactive session>")