[clang-repl]: Print stack-trace on crash (#117896)

Call `llvm::sys::PrintStackTraceOnErrorSignal` at the start of main to
1. Print a strack trace on crash
2. Disable the assertion failed popup in Windows Debug Builds

Other tools (for example clang-check or clang-query) already do this.

This fixes debug build bots on windows hanging (waiting for the popup to
be dismissed) and ultimately getting terminated due to timeout.