hide internal parser error with a correct SyntaxError exception for b…

…etter error reporting

src/org/rascalmpl/semantics/dynamic/Import.java

@@ -58,13 +58,15 @@
 import org.rascalmpl.library.lang.rascal.syntax.RascalParser;
 import org.rascalmpl.parser.ASTBuilder;
 import org.rascalmpl.parser.Parser;
+import org.rascalmpl.parser.gtd.exception.ParseError;
 import org.rascalmpl.parser.gtd.exception.UndeclaredNonTerminalException;
 import org.rascalmpl.parser.gtd.result.action.IActionExecutor;
 import org.rascalmpl.parser.gtd.result.out.DefaultNodeFlattener;
 import org.rascalmpl.parser.uptr.UPTRNodeFactory;
 import org.rascalmpl.parser.uptr.action.NoActionExecutor;
 import org.rascalmpl.uri.URIResolverRegistry;
 import org.rascalmpl.uri.URIUtil;
+import org.rascalmpl.values.IRascalValueFactory;
 import org.rascalmpl.values.RascalFunctionValueFactory;
 import org.rascalmpl.values.RascalValueFactory;
 import org.rascalmpl.values.functions.IFunction;
@@ -397,8 +399,14 @@ private static void addImportToCurrentModule(ISourceLocation src, String name, I
   public static ITree parseModuleAndFragments(char[] data, ISourceLocation location, IEvaluator<Result<IValue>> eval) {
       eval.__setInterrupt(false);
       IActionExecutor<ITree> actions = new NoActionExecutor();
-
-      ITree tree = new RascalParser().parse(Parser.START_MODULE, location.getURI(), data, actions, new DefaultNodeFlattener<IConstructor, ITree, ISourceLocation>(), new UPTRNodeFactory(true));
+      ITree tree;
+
+      try {
+        tree = new RascalParser().parse(Parser.START_MODULE, location.getURI(), data, actions, new DefaultNodeFlattener<IConstructor, ITree, ISourceLocation>(), new UPTRNodeFactory(true));
+      } 
+      catch (ParseError e) {
+        throw new SyntaxError("module", IRascalValueFactory.getInstance().sourceLocation(location, e.getOffset(), e.getLength(), e.getBeginLine(), e.getEndLine(), e.getBeginColumn(), e.getEndColumn()));
+      }
 
       if (TreeAdapter.isAmb(tree)) {
           // Ambiguity is dealt with elsewhere