fix: broken conditionals

src/error_tests.zig

@@ -91,6 +91,40 @@ test "compiler: constant cycle detection" {
     );
 }
 
+test "compiler: final else case" {
+    try testEqual(
+        \\{true:
+        \\- else:
+        \\    False
+        \\- 1 == 1:
+        \\    Woops!
+        \\}
+    ,
+        \\<STDIN>:2:3: error: 'else' case should always be the final case in conditional
+        \\2    | - else:
+        \\     |   ^
+        \\
+    );
+}
+
+test "compiler: final else case 2" {
+    try testEqual(
+        \\{
+        \\- true:
+        \\    True
+        \\- else:
+        \\    False
+        \\- else:
+        \\    False
+        \\}
+    ,
+        \\<STDIN>:4:3: error: 'else' case should always be the final case in conditional
+        \\4    | - else:
+        \\     |   ^
+        \\
+    );
+}
+
 fn testEqual(source_bytes: [:0]const u8, expected_error: []const u8) !void {
     const gpa = std.testing.allocator;
     var arena_allocator = std.heap.ArenaAllocator.init(gpa);