added dyn_compare support for int64

src/std/cast.c

@@ -343,6 +343,11 @@ HL_PRIM int hl_dyn_compare( vdynamic *a, vdynamic *b ) {
 			int d = a->v.i - b->v.i;
 			return d == hl_invalid_comparison ? -1 : d;
 		}
+	case TK2(HI64,HI64):
+		{
+			int64 d = a->v.i64 - b->v.i64;
+			return d == 0 ? 0 : (d > 0 ? 1 : -1);
+		}
 	case TK2(HF32,HF32):
 		return fcompare(a->v.f,b->v.f);
 	case TK2(HF64,HF64):