[WIP] Fix ConfigurationBindingGeneratorTests failures on s390x

[Copilot]

• Modify RoslynTestUtils.CompareLines to accept an optional line-normalizer delegate
• Modify VerifyAgainstBaselineUsingFile in GeneratorTests.Helpers.cs to normalize [InterceptsLocation(1, "...")] data strings during comparison (the data is a content hash that differs on big-endian systems like s390x)
• Build and verify the tests pass

Original prompt

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This section details on the original issue you should resolve

<issue_title>New ConfigurationBindingGeneratorTests fail on s390x (endian issue?)</issue_title>
<issue_description>Since #104180 was merged, the following test cases are failing on s390x:

    Microsoft.Extensions.SourceGeneration.Configuration.Binder.Tests.ConfigurationBindingGeneratorTests.Bind_T_BinderOptions [FAIL]
    Microsoft.Extensions.SourceGeneration.Configuration.Binder.Tests.ConfigurationBindingGeneratorTests.Collections [FAIL]
    Microsoft.Extensions.SourceGeneration.Configuration.Binder.Tests.ConfigurationBindingGeneratorTests.Bind_Instance_BinderOptions [FAIL]
    Microsoft.Extensions.SourceGeneration.Configuration.Binder.Tests.ConfigurationBindingGeneratorTests.BindConfiguration [FAIL]
    Microsoft.Extensions.SourceGeneration.Configuration.Binder.Tests.ConfigurationBindingGeneratorTests.Get_T_BinderOptions [FAIL]
    Microsoft.Extensions.SourceGeneration.Configuration.Binder.Tests.ConfigurationBindingGeneratorTests.Bind_Instance [FAIL]
    Microsoft.Extensions.SourceGeneration.Configuration.Binder.Tests.ConfigurationBindingGeneratorTests.Get_T [FAIL]
    Microsoft.Extensions.SourceGeneration.Configuration.Binder.Tests.ConfigurationBindingGeneratorTests.GetValue_T_Key_DefaultValue [FAIL]
    Microsoft.Extensions.SourceGeneration.Configuration.Binder.Tests.ConfigurationBindingGeneratorTests.Bind_CanParseTargetConfigType_FromMethodParam [FAIL]
    Microsoft.Extensions.SourceGeneration.Configuration.Binder.Tests.ConfigurationBindingGeneratorTests.Get_TypeOf [FAIL]
    Microsoft.Extensions.SourceGeneration.Configuration.Binder.Tests.ConfigurationBindingGeneratorTests.Bind_T [FAIL]
    Microsoft.Extensions.SourceGeneration.Configuration.Binder.Tests.ConfigurationBindingGeneratorTests.UnsupportedTypes [FAIL]
    Microsoft.Extensions.SourceGeneration.Configuration.Binder.Tests.ConfigurationBindingGeneratorTests.GetValue_TypeOf_Key [FAIL]
    Microsoft.Extensions.SourceGeneration.Configuration.Binder.Tests.ConfigurationBindingGeneratorTests.BindConfigurationWithConfigureActions [FAIL]
    Microsoft.Extensions.SourceGeneration.Configuration.Binder.Tests.ConfigurationBindingGeneratorTests.Configure_T_name_BinderOptions [FAIL]
    Microsoft.Extensions.SourceGeneration.Configuration.Binder.Tests.ConfigurationBindingGeneratorTests.GetValue_T_Key [FAIL]
    Microsoft.Extensions.SourceGeneration.Configuration.Binder.Tests.ConfigurationBindingGeneratorTests.MinimalGenerationIfNoBindableMembers [FAIL]
    Microsoft.Extensions.SourceGeneration.Configuration.Binder.Tests.ConfigurationBindingGeneratorTests.Bind_Key_Instance [FAIL]
    Microsoft.Extensions.SourceGeneration.Configuration.Binder.Tests.ConfigurationBindingGeneratorTests.Configure_T [FAIL]
    Microsoft.Extensions.SourceGeneration.Configuration.Binder.Tests.ConfigurationBindingGeneratorTests.DefaultConstructorParameters [FAIL]
    Microsoft.Extensions.SourceGeneration.Configuration.Binder.Tests.ConfigurationBindingGeneratorTests.GetValue_TypeOf_Key_DefaultValue [FAIL]
    Microsoft.Extensions.SourceGeneration.Configuration.Binder.Tests.ConfigurationBindingGeneratorTests.Get_TypeOf_BinderOptions [FAIL]
    Microsoft.Extensions.SourceGeneration.Configuration.Binder.Tests.ConfigurationBindingGeneratorTests.Primitives [FAIL]
    Microsoft.Extensions.SourceGeneration.Configuration.Binder.Tests.ConfigurationBindingGeneratorTests.Configure_T_name [FAIL]
    Microsoft.Extensions.SourceGeneration.Configuration.Binder.Tests.ConfigurationBindingGeneratorTests.Configure_T_BinderOptions [FAIL]
    Microsoft.Extensions.SourceGeneration.Configuration.Binder.Tests.ConfigurationBindingGeneratorTests.Get_PrimitivesOnly [FAIL]
    Microsoft.Extensions.SourceGeneration.Configuration.Binder.Tests.ConfigurationBindingGeneratorTests.GetValue [FAIL]
    Microsoft.Extensions.SourceGeneration.Configuration.Binder.Tests.ConfigurationBindingGeneratorTests.Get [FAIL]
    Microsoft.Extensions.SourceGeneration.Configuration.Binder.Tests.ConfigurationBindingGeneratorTests.Bind [FAIL]

The symptom is in all cases of the type:

    Microsoft.Extensions.SourceGeneration.Configuration.Binder.Tests.ConfigurationBindingGeneratorTests.Bind [FAIL]
      Line 38 does not match.
      Expected Line:
              [InterceptsLocation(1, "/TzDbopkyui/vWzNJfmpq0IBAABzcmMtMC5jcw==")] // src-0.cs(12,14)
      Actual Line:
              [InterceptsLocation(1, "6sAEYxbTvjjW269lKa/ayUIBAABzcmMtMC5jcw==")] // src-0.cs(12,14)
      Stack Trace:
        /home/uweigand/runtime/src/libraries/Microsoft.Extensions.Configuration.Binder/tests/SourceGenerationTests/GeneratorTests.Helpers.cs(175,0): at Microsoft.Extensions.SourceGeneration.Configuration.Binder.Tests.ConfigurationBindingGeneratorTests.VerifyAgainstBaselineUsingFile(String filename, String testSourceCode, ExtensionClassType extType, ExpectedDiagnostics expectedDiags)
        /home/u...

</details>



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- Fixes dotnet/runtime#105311

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