Fixes for bug: #1324

- fixes for updateConnection: https://openmodelica.org:8443/cb/issue/1324
- update the interactive symbol table with correct program in Interactive.mo
- add testsuite/mosfiles-nosim/interactive_api_attributes.mos to test for this
  bug.

git-svn-id: https://openmodelica.org/svn/OpenModelica/trunk@6432 f25d12d1-65f4-0310-ae8a-bbce733d8d8e

Compiler/Interactive.mo

@@ -2192,7 +2192,7 @@ algorithm
          Absyn.CREF(componentRef = cr)} = getApiFunctionArgs(istmts);
         nargs = getApiFunctionNamedArgs(istmts);
         (s1,newp) = deleteConnection(cr, c1, c2, p);
-        (resstr,newp_1) = addConnection(cr, c1, c2, nargs, newp);
+        (resstr,newp) = addConnection(cr, c1, c2, nargs, newp);
         st = setSymbolTableAST(st, newp);
       then
         (resstr, st);