Reverse-sync from upstream

Author: kddnewton

templates/src/diagnostic.c.erb

@@ -249,8 +249,8 @@ static const pm_diagnostic_data_t diagnostic_messages[PM_DIAGNOSTIC_ID_MAX] = {
     [PM_ERR_INVALID_VARIABLE_GLOBAL_3_3]        = { "`%.*s' is not allowed as a global variable name", PM_ERROR_LEVEL_SYNTAX },
     [PM_ERR_INVALID_VARIABLE_GLOBAL]            = { "'%.*s' is not allowed as a global variable name", PM_ERROR_LEVEL_SYNTAX },
     [PM_ERR_INVALID_YIELD]                      = { "Invalid yield", PM_ERROR_LEVEL_SYNTAX },
-    [PM_ERR_IT_NOT_ALLOWED_NUMBERED]            = { "`it` is not allowed when a numbered parameter is already used", PM_ERROR_LEVEL_SYNTAX },
-    [PM_ERR_IT_NOT_ALLOWED_ORDINARY]            = { "`it` is not allowed when an ordinary parameter is defined", PM_ERROR_LEVEL_SYNTAX },
+    [PM_ERR_IT_NOT_ALLOWED_NUMBERED]            = { "'it' is not allowed when a numbered parameter is already used", PM_ERROR_LEVEL_SYNTAX },
+    [PM_ERR_IT_NOT_ALLOWED_ORDINARY]            = { "'it' is not allowed when an ordinary parameter is defined", PM_ERROR_LEVEL_SYNTAX },
     [PM_ERR_LAMBDA_OPEN]                        = { "expected a `do` keyword or a `{` to open the lambda block", PM_ERROR_LEVEL_SYNTAX },
     [PM_ERR_LAMBDA_TERM_BRACE]                  = { "expected a lambda block beginning with `{` to end with `}`", PM_ERROR_LEVEL_SYNTAX },
     [PM_ERR_LAMBDA_TERM_END]                    = { "expected a lambda block beginning with `do` to end with `end`", PM_ERROR_LEVEL_SYNTAX },

test/prism/errors/it_with_ordinary_parameter.txt

@@ -1,3 +1,3 @@
 proc { || it }
-          ^~ `it` is not allowed when an ordinary parameter is defined
+          ^~ 'it' is not allowed when an ordinary parameter is defined