- fix bootstrapping

- strangely SOME(outRules) := getGlobalRoot(Global.rewriteRulesIndex); 
  does not work directly in the bootstrapped compiler, 
  you get: Error: Invalid pattern: SOME(rules) of type ##T_UNKNOWN#



git-svn-id: https://openmodelica.org/svn/OpenModelica/trunk@18834 f25d12d1-65f4-0310-ae8a-bbce733d8d8e

Compiler/Script/RewriteRules.mo

@@ -82,7 +82,7 @@ algorithm
   outExp := match(inExp)
    local 
      Rules rules;
-   case (inExp)
+   case (_)
      equation
        rules = getRules();
        outExp = matchAndRewriteExp(inExp, rules);
@@ -614,8 +614,11 @@ end clearRules;
 public function getRules
 "get the loaded rules"
   output Rules outRules;
+protected
+  Option<Rules> orules;
 algorithm
-  SOME(outRules) := getGlobalRoot(Global.rewriteRulesIndex);
+  orules := getGlobalRoot(Global.rewriteRulesIndex);
+  SOME(outRules) := orules;
 end getRules;
 
 protected function parse