Address CommonSubexpressions 0.3 deprecation (#462)

Author: omus

Project.toml

@@ -13,7 +13,7 @@ StaticArrays = "90137ffa-7385-5640-81b9-e52037218182"
 
 [compat]
 Calculus = "0.2, 0.3, 0.4, 0.5"
-CommonSubexpressions = "0.1, 0.2, 0.3"
+CommonSubexpressions = "0.3"
 DiffResults = "0.0.1, 0.0.2, 0.0.3, 0.0.4, 1.0.1"
 DiffRules = "0.0.4, 0.0.5, 0.0.6, 0.0.7, 0.0.8, 0.0.9, 0.0.10, 0.1, 1.0"
 DiffTests = "0.0.1, 0.1"

src/prelude.jl

@@ -60,7 +60,7 @@ function qualified_cse!(expr)
         placeholders[placeholder] = x
         placeholder
     end
-    cse_expr = CommonSubexpressions.cse(expr, false)
+    cse_expr = CommonSubexpressions.cse(expr, warn=false)
     replace_match!(x -> haskey(placeholders, x), cse_expr.args) do x
         placeholders[x]
     end