ReasonLIGO: missing ')' error message.

src/bin/expect_tests/error_messages_tests.ml

@@ -21,3 +21,19 @@ let%expect_test _ =
     * Open a gitlab issue: https://gitlab.com/ligolang/ligo/issues/new
     * Check the changelog by running 'ligo changelog' |} ] ;
 
+let%expect_test _ =
+  run_ligo_bad [ "compile-contract" ; "../../test/contracts/negative/missing_rpar.religo" ; "main" ] ;
+  [%expect {|
+    ligo: : Parse error in file "missing_rpar.religo", line 5, characters 0-3, after "m" and before "let":
+          Missing `)`.
+           {}
+
+
+     If you're not sure how to fix this error, you can
+     do one of the following:
+
+    * Visit our documentation: https://ligolang.org/docs/intro/what-and-why/
+    * Ask a question on our Discord: https://discord.gg/9rhYaEt
+    * Open a gitlab issue: https://gitlab.com/ligolang/ligo/issues/new
+    * Check the changelog by running 'ligo changelog' |} ] ;
+

src/passes/1-parser/reasonligo/error.messages.checked-in

@@ -2619,7 +2619,7 @@ interactive_expr: True LPAR True VBAR
 ## In state 219, spurious reduction of production expr -> base_cond__open(expr) 
 ##
 
-<YOUR SYNTAX ERROR MESSAGE HERE>
+Missing `)`.
 
 interactive_expr: True LPAR WILD
 ##

src/test/contracts/negative/missing_rpar.religo

@@ -0,0 +1,5 @@
+type foo = big_map(int, int);
+
+let test_case = (n: int, m: foo): foo => Big_map.update(23, Some(n), m
+
+let z = 4;