std.BoundedArray: add clear()

lib/std/bounded_array.zig

@@ -72,6 +72,11 @@ pub fn BoundedArrayAligned(
             self.len = @intCast(len);
         }
 
+        /// Remove all elements from the slice.
+        pub fn clear(self: *Self) void {
+            self.len = 0;
+        }
+
         /// Copy the content of an existing slice.
         pub fn fromSlice(m: []const T) error{Overflow}!Self {
             var list = try init(m.len);

src/Compilation.zig

@@ -2264,7 +2264,7 @@ pub fn update(comp: *Compilation, main_progress_node: std.Progress.Node) !void {
             }
         }
 
-        zcu.analysis_roots.resize(0) catch unreachable;
+        zcu.analysis_roots.clear();
 
         try comp.queueJob(.{ .analyze_mod = std_mod });
         zcu.analysis_roots.appendAssumeCapacity(std_mod);