[lld] [ELF] Detect convergence of output section addresses (PR #93888)

[Daniel Thornburgh via llvm-commits]

================
@@ -1389,7 +1392,8 @@ LinkerScript::AddressState::AddressState() {
 // we also handle rest commands like symbol assignments and ASSERTs.
 // Returns a symbol that has changed its section or value, or nullptr if no
----------------
mysterymath wrote:

The comment about the return value is out of date.

https://github.com/llvm/llvm-project/pull/93888