[clang] [Clang] skip default argument instantiation for non-defining friend declarations without specialization info to meet [dcl.fct.default] p4 (PR #113777)

[Alan Zhao via cfe-commits]

alanzhao1 wrote:

FYI this is causing Clang to crash with Chrome: https://crbug.com/377956048

I'm currently working on getting a reduced repro with CReduce.

https://github.com/llvm/llvm-project/pull/113777