[clang] [clang] Fix crash parsing delayed lambda default arguments (PR #213556)

[Gauarv Chaudhary via cfe-commits]

ANAMASGARD wrote:

  Hi @zwuis 
  > -fms-compatibility enables Microsoft extensions, which expand string literals through
  > ExpandFunctionLocalPredefinedMacros. That path calls getPredefinedExprDecl during delayed default-argument parsing,
  > after the lambda scope has been popped. Standard mode does not take this path, so it does not crash.

https://github.com/llvm/llvm-project/pull/213556