Fix #3380: Handle save() for short class definitions

Author: sjoelund

Compiler/FrontEnd/ModelicaBuiltin.mo

@@ -1850,10 +1850,9 @@ external "builtin";
 annotation(preferredView="text");
 end mkdir;
 
-function remove "removes a file or directory of given path (which may be either relative or absolute)
-  returns 0 if path was removed successfully."
-  input String newDirectory;
-  output Boolean success;
+function remove "removes a file or directory of given path (which may be either relative or absolute)."
+  input String path;
+  output Boolean success "Returns true on success.";
 external "builtin";
 annotation(preferredView="text");
 end remove;

Compiler/Script/Interactive.mo

@@ -15699,6 +15699,8 @@ algorithm
         parts2 = replacePublicList(parts, publst2);
       then
         Absyn.CLASS(a,b,c,d,e,Absyn.CLASS_EXTENDS(baseClassName,modifications,cmt,parts2,ann),file_info);
+    // Short class definitions, etc
+    else inClass;
   end match;
 end removeInnerDiffFiledClass;
 

Compiler/runtime/systemimpl.c

@@ -1098,7 +1098,7 @@ extern int SystemImpl__removeDirectory(const char *path)
     }
   }
 
-  return retval;
+  return retval==0;
 }
 
 extern char* SystemImpl__readFileNoNumeric(const char* filename)