Removed warnings on ignored aligns. Only do aligment on packed structs, align(1) struct Packed { ... }

Changed the way struct/class fields are added, first small part of cleaning up these...
Make struct/class/union fields aware of any anonymous struct/union they might be part of, not yet really useful, but part of getting better union support.

dmd/parse.c

@@ -349,6 +349,9 @@ Array *Parser::parseDeclDefs(int once)
 	    case TOKalign:
 	    {	unsigned n;
 
+        // LDC better align code locations
+        Loc alignloc = loc;
+
 		s = NULL;
 		nextToken();
 		if (token.value == TOKlparen)
@@ -367,7 +370,7 @@ Array *Parser::parseDeclDefs(int once)
 		    n = global.structalign;		// default
 
 		a = parseBlock();
-		s = new AlignDeclaration(loc, n, a);
+		s = new AlignDeclaration(alignloc, n, a);
 		break;
 	    }