Make tests compile again

Some tests are still not passing, though.

A migration script was added to migrate serialized grids from
pre-scrollback to the current format. The script is included with this
commit for completeness, posterity, and as an example to be used in the
future.

A few tests in grid/tests.rs were removed due to becoming irrelevant.

1 files changed, 12 insertions, 2 deletions

diff --git a/src/grid/storage.rs b/src/grid/storage.rs
index 1588b006..0f1ba9c5 100644
--- a/src/grid/storage.rs
+++ b/src/grid/storage.rs
@@ -13,15 +13,25 @@
 /// done so manually.
 use std::ops::{Index, IndexMut};
 
-use index::Line;
+use index::{IndexRange, Line};
 
-#[derive(Clone, Debug, Deserialize, Serialize, Eq, PartialEq)]
+#[derive(Clone, Debug, Deserialize, Serialize)]
 pub struct Storage<T> {
     inner: Vec<T>,
     zero: usize,
     visible_lines: Line,
 }
 
+impl<T: PartialEq> ::std::cmp::PartialEq for Storage<T> {
+    fn eq(&self, other: &Self) -> bool {
+        let mut equal = true;
+        for i in IndexRange(Line(0) .. self.visible_lines) {
+            equal = equal && (self[i] == other[i])
+        }
+        equal
+    }
+}
+
 impl<T> Storage<T> {
     #[inline]
     pub fn with_capacity(cap: usize, lines: Line) -> Storage<T> {