Looks like it's been broken since some time Nov 11 - 13 and we didn't notice :-/

https://luci-logdog.appspot.com/v/?s=chromium%2Fbb%2Fchromium.fyi%2FCrWinClangLLD%2F4779%2F%2B%2Frecipes%2Fsteps%2Fcompile%2F0%2Fstdout

[15010/54514] LINK frame_editor.exe frame_editor.exe.pdb
FAILED: frame_editor.exe frame_editor.exe.pdb 
C:/b/depot_tools/python276_bin/python.exe ../../build/toolchain/win/tool_wrapper.py link-wrapper environment.x86 False ../../third_party/llvm-build/Release+Asserts/bin/lld-link.exe /nologo /OUT:./frame_editor.exe /PDB:./frame_editor.exe.pdb @./frame_editor.exe.rsp
<inline asm>:7:2: error: invalid symbol redefinition
        L__MSASMLABEL_.0__wloop:
        ^
LLVM ERROR: Error parsing inline asm


Not clear if this is due to a webrtc change on frame_editor or due to an lld regression.