feat: add support for setting a custom benchmark name

[not-matthias]

No description provided.

[Copilot]

Pull Request Overview

This PR adds functionality to allow setting custom benchmark names in Google Benchmark while preserving file path and namespace prefixes when CODSPEED_ENABLED is defined. The implementation handles parameter preservation in the benchmark naming format.

Key changes:

• Modified SetName() to intelligently preserve file/namespace prefixes and parameters
• Added comprehensive test cases demonstrating custom naming with various scenarios

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
google_benchmark/src/benchmark_register.cc	Updated SetName() method to preserve file path, namespace prefix, and parameters when CODSPEED_ENABLED
examples/google_benchmark_cmake/main.cpp	Added test cases for custom benchmark naming including nested namespaces, captured benchmarks, and parameterized benchmarks

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[codspeed-hq]

CodSpeed Performance Report

Merging #31 will degrade performances by 32.21%

_{Comparing cod-1575-codspeed-cpp-support-custom-benchmark-name (cf778ec) with main (810d6b4)}

Summary

⚡ 5 improvements
❌ 10 regressions
✅ 137 untouched
🆕 48 new

⚠️ Please fix the performance issues or acknowledge them on CodSpeed.

Benchmarks breakdown

	Mode	Benchmark	BASE	HEAD	Change
❌	Simulation	BM_Capture[int_string_test]	61.4 ns	90.6 ns	-32.21%
❌	Simulation	BM_Capture[int_test]	61.4 ns	90.6 ns	-32.21%
🆕	WallTime	BM_Capture_int[int_test]	N/A	< 1 ns	N/A
🆕	Simulation	BM_Capture_int[int_test]	N/A	90.6 ns	N/A
🆕	Simulation	BM_Capture_int_string[int_string_test]	N/A	90.6 ns	N/A
🆕	WallTime	BM_Capture_int_string[int_string_test]	N/A	< 1 ns	N/A
🆕	WallTime	BM_custom_args[1000]	N/A	1.3 ns	N/A
🆕	Simulation	BM_custom_args[1000]	N/A	121.4 ns	N/A
🆕	Simulation	BM_custom_args[100]	N/A	121.4 ns	N/A
🆕	WallTime	BM_custom_args[100]	N/A	1.3 ns	N/A
🆕	Simulation	BM_custom_multi[10/20]	N/A	153.3 ns	N/A
🆕	WallTime	BM_custom_multi[10/20]	N/A	1.7 ns	N/A
🆕	Simulation	BM_custom_multi[100/200]	N/A	153.3 ns	N/A
🆕	WallTime	BM_custom_multi[100/200]	N/A	1.7 ns	N/A
🆕	WallTime	BM_short_name	N/A	< 1 ns	N/A
🆕	Simulation	BM_short_name	N/A	61.7 ns	N/A
🆕	Simulation	BM_with_args[1000]	N/A	121.4 ns	N/A
🆕	WallTime	BM_with_args[1000]	N/A	1.3 ns	N/A
🆕	Simulation	BM_with_args[100]	N/A	121.4 ns	N/A
🆕	WallTime	BM_with_args[100]	N/A	1.3 ns	N/A
...	...	...	...	...	...

ℹ️ Only the first 20 benchmarks are displayed. Go to the app to view all benchmarks.

[GuillaumeLagrange]

olgtm

[GuillaumeLagrange]

lgtm!