Adding recovery for ForStatement

[m0rkeulv]

Adding recovery for for loops so we don't have to display unparsable data.
Tested With:

 class HighlightTest {

    public function new() {}

    public function testForLoop()  {
        var r = ["1", "2", "3"];
        // CORRECT USE
        for(a in r)     {var f:String = "string";}
        var x = "";

        //WRONG USE
        for(a+ in -r)   {var f:String = "string";}
        var x = "";
        
        for(a : r)      {var f:String = "string";}
        var x = "";

        for(?)          {var f:String = "string";}
        var x = "";
        
        var c = ["v1" =>"V2"];

        // CORRECT USE
        for(a => b in c)     {var f:String = "string";}
        var x = "";

        //WRONG USE
        for(a => b : b)     {var f:String = "string";}
        var x = "";

        for(a => b in !)    {var f:String = "string";}
        var x = "";

        for(a ! b in c)     {var f:String = "string";}
        var x = "";

    }
}

[EricBishton]

OK. I'll turn that code into a test before I pull this: A new test routine in testSrc/com/intellij/plugins/haxe/lang/parser/statements/ForTest.java. The testData directory is testData/parsing/haxe/statements/for/

[EricBishton]

Rather than holding this up further, I filed #1040 so that we remember to do the test.