Conflicting definition of types for `curl` project

[IDKWNTCMF]

Description
In C we can define a struct and a typedef with the same type name. But this won`t compile with C++ compilers.

To Reproduce
Steps to reproduce the behavior:

1. Clone curl project
2. Select curl target and generate tests for lib/cf-h1-proxy.c file
3. Try to run generated tests

Expected behavior
Tests are supposed to be executed successfully.

Actual behavior
Compilation error.

Visual proofs (screenshots, logs)

error: definition of type 'h1_tunnel_state' conflicts with typedef of the same name)