Fix the Buffer::end() madness

Until now, buffer had multiple recognized end coordinates, either
{ line_count, 0 } or { line_count - 1, line[line_count - 1].length }.

Now the only correct end coord is { line_count, 0 }, removing the need
for various special cases.

1 files changed, 2 insertions, 3 deletions

diff --git a/src/buffer.hh b/src/buffer.hh
index d0fdffcb..d2679ba1 100644
--- a/src/buffer.hh
+++ b/src/buffer.hh
@@ -89,9 +89,9 @@ public:
 
 private:
     SafePtr<const Buffer> m_buffer;
-    StringView m_line;
     BufferCoord m_coord;
-    LineCount m_last_line;
+    LineCount m_line_count;
+    StringView m_line;
 };
 
 using BufferLines = Vector<StringDataPtr, MemoryDomain::BufferContent>;
@@ -205,7 +205,6 @@ public:
     {
         enum Type : char { Insert, Erase };
         Type type;
-        bool at_end;
         BufferCoord begin;
         BufferCoord end;
     };