[Bug]: std::length_error from cmake function "generate_testname_guards()"

[hunjmes]

Describe the issue

Symptoms seem related to earlier issue #2849 .

When building a package that has lots of Google Tests, we get an unhandled std::length_error exception, from file GoogleTestAddTests.cmake , function generate_testname_guards():

terminate called after throwing an instance of 'std::length_error'
  what():  basic_string::_M_create
CMake Error at .../Modules/GoogleTestAddTests.cmake:40 (message):
  Error running test executable.

    Path: '.../TestSuites'
    Result: Child aborted
    Output:
      SingleThreadUtils default stack size from system 8388608

Steps to reproduce the problem

Our build system currently reproduces this privately, but I do not yet have a public repro.

What version of GoogleTest are you using?

3.9.

What operating system and version are you using?

Amazon Linux.

What compiler and version are you using?

gcc 11.x

What build system are you using?

cmake 3.9.6.

Additional context

No response

[derekmauro]

Sorry, but we don't look at issues that are this vague and have no reproducer.