tests(lexer): add tests for the literate programming

tests/test_literate/good/output/test_grave_char.catala_en.A.out

@@ -0,0 +1,2 @@
+[RESULT] Computation successful! Results:
+[RESULT] literate_parsing_is_ok = true

tests/test_literate/good/output/test_grave_char.catala_fr.A.out

@@ -0,0 +1,2 @@
+[RESULT] Computation successful! Results:
+[RESULT] literate_parsing_is_ok = true

tests/test_literate/good/test_grave_char.catala

@@ -1,4 +1,4 @@
-## Law text should be able to contain '`'.
+## Law text should be able to contain grave accent '`'.
 
 This is a block of law text containing `.
 This allows to:
@@ -16,10 +16,10 @@ let () = print_endline "Hello world!"
 **Remark**: for Fenced Code Blocks, ``` must be followed by a space or a new line.
 
 ```catala
-new scope Test :
+new scope A:
   param literate_parsing_is_ok content bool
 
-scope Test :
+scope A:
   def literate_parsing_is_ok := true
 ```
 

tests/test_literate/good/test_grave_char.catala_en

@@ -0,0 +1,26 @@
+## Law text should be able to contain grave accent '`'.
+
+This is a block of law text containing `.
+This allows to:
+
+* use `Markdown` code block inside `Catala` files,
+
+* _escape_ special characters such as `#` or `>`,
+
+* use Fenced Code Blocks:
+
+```
+let () = print_endline "Hello world!"
+```
+
+**Remark**: for Fenced Code Blocks, ``` must be followed by a space or a new line.
+
+```catala
+declaration scope A:
+  context literate_parsing_is_ok content boolean
+
+scope A:
+  definition literate_parsing_is_ok equals true
+```
+
+Even after `Catala` code block.

tests/test_literate/good/test_grave_char.catala_fr

@@ -0,0 +1,26 @@
+## Law text should be able to contain grave accent '`'.
+
+This is a block of law text containing `.
+This allows to:
+
+* use `Markdown` code block inside `Catala` files,
+
+* _escape_ special characters such as `#` or `>`,
+
+* use Fenced Code Blocks:
+
+```
+let () = print_endline "Hello world!"
+```
+
+**Remark**: for Fenced Code Blocks, ``` must be followed by a space or a new line.
+
+```catala
+déclaration champ d'application A:
+  contexte literate_parsing_is_ok contenu booléen
+
+champ d'application A:
+  définition literate_parsing_is_ok égal à vrai
+```
+
+Even after `Catala` code block.