fix: always call base class for HttpClient

[vbreuss]

This PR fixes a bug in the source generator where HttpClient.Send methods were not always calling the base class implementation. The fix ensures that for HttpClient.Send* methods, the base class is always invoked regardless of mock setup, which is necessary for proper HttpClient functionality.

Key changes:

• Modified method generation logic to always call base class for HttpClient.Send* methods
• Restructured conditional logic to handle both void and non-void return types uniformly

[Copilot]

Pull request overview

This PR fixes a critical bug in the source generator where HttpClient.Send methods were not always calling the base class implementation. The fix ensures that for HttpClient.Send* methods, the base class is always invoked regardless of mock setup, which is necessary for proper HttpClient functionality.

Key changes:

• Modified method generation logic to always call base class for HttpClient.Send* methods
• Restructured conditional logic to handle both void and non-void return types uniformly

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
100.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[github-actions]

Test Results

    14 files  ±0      14 suites  ±0   5m 43s ⏱️ +37s
 1 839 tests ±0   1 838 ✅ ±0  1 💤 ±0  0 ❌ ±0 
12 266 runs  ±0  12 265 ✅ ±0  1 💤 ±0  0 ❌ ±0 

Results for commit 8a7c77f. ± Comparison against base commit 7c6582c.

[github-actions]

🚀 Benchmark Results

Details

BenchmarkDotNet v0.15.8, Linux Ubuntu 24.04.3 LTS (Noble Numbat)

AMD EPYC 7763 3.11GHz, 1 CPU, 4 logical and 2 physical cores

.NET SDK 10.0.101

[Host] : .NET 10.0.1 (10.0.1, 10.0.125.57005), X64 RyuJIT x86-64-v3
Job=InProcess  Toolchain=InProcessEmitToolchain  IterationCount=15

LaunchCount=1  WarmupCount=10

Method	Mean	Error	StdDev	Gen0	Gen1	Allocated
Simple_Mockolate	1.601 μs	0.0143 μs	0.0127 μs	0.2270	-	3.72 KB
Simple_Moq	181.346 μs	0.2707 μs	0.2261 μs	0.4883	-	14.55 KB
Simple_NSubstitute	5.731 μs	0.0140 μs	0.0110 μs	0.5493	0.0076	9.09 KB
Simple_FakeItEasy	6.379 μs	0.0256 μs	0.0214 μs	0.4959	-	8.11 KB

[github-actions]

This is addressed in release v0.50.0.