2010-05-05 Miguel de Icaza <miguel@novell.com>

	* cs-parser.jay: Productions to catch common mistakes when other
	punctuation operators are used instead of comma.   Fixes 571702	


svn path=/trunk/mcs/; revision=156757

mcs/errors/cs1003-2.cs

@@ -0,0 +1,12 @@
+// CS1003: Syntax error, `.' expected
+// Line: 9
+class X {
+    public int Field;
+
+    static void Main ()
+    {
+        var x = new X () {
+            Field = 1;
+        };
+    }
+}

mcs/mcs/ChangeLog

@@ -1,3 +1,8 @@
+2010-05-05  Miguel de Icaza  <miguel@novell.com>
+
+	* cs-parser.jay: Productions to catch common mistakes when other
+	punctuation operators are used instead of comma.   Fixes 571702	
+
 2010-05-05  Marek Safar  <marek.safar@gmail.com>
 
 	* anonymous.cs: Mutate correct set of constraints.

mcs/mcs/cs-parser.jay

@@ -3160,6 +3160,10 @@ member_initializer_list
 	  	a.Add ((Expression) $3);
 	  	$$ = a;
 	  }
+	| member_initializer_list error {
+	  	Report.Error (1003, GetLocation ($1), "Syntax error, expecting ','");
+		$$ = null;
+	  }
 	;
 
 member_initializer
@@ -3181,7 +3185,10 @@ member_initializer
 	  }
 	| OPEN_BRACE expression_list CLOSE_BRACE
 	  {
-	  	$$ = new CollectionElementInitializer ((List<Expression>)$2, GetLocation ($1));
+		if ($2 == null)
+			$$ = null;
+		else
+	  		$$ = new CollectionElementInitializer ((List<Expression>)$2, GetLocation ($1));
 	  }
 	| OPEN_BRACE CLOSE_BRACE
 	  {
@@ -3330,6 +3337,10 @@ expression_list
 		list.Add ((Expression) $3);
 		$$ = list;
 	  }
+	| expression_list error {
+	  	Report.Error (1003, GetLocation ($1), "Syntax error, expecting ','");
+		$$ = null;
+	  }
 	;
 
 expression_list_arguments