Handle inline arrays on trailing-slash paths

[AayushP123]

Summary

Fixes #7876.

Uses the existing EmptyPathSegment placeholder when naming inline response models on trailing-slash paths. Without a fallback name, arrays of inline objects reached FindChildByName with an empty declaration name and aborted generation.

Changes

• Allow GetClassName callers to provide a fallback for empty path segments.
• Apply the trailing-slash placeholder to regular, inherited, and composed inline model declarations.
• Add a regression test for an inline object array returned from /test/.
• Add a changelog entry.

Testing

• Generated the issue's Go client from the provided OpenAPI shape.
• go test ./... on the generated client with Go 1.26.5.
• dotnet format whitespace kiota.slnx --no-restore --verify-no-changes --include src/Kiota.Builder/Extensions/OpenApiUrlTreeNodeExtensions.cs src/Kiota.Builder/KiotaBuilder.cs tests/Kiota.Builder.Tests/KiotaBuilderTests.cs
• dotnet test tests/Kiota.Builder.Tests/Kiota.Builder.Tests.csproj --no-restore (2,191 passed, 2 skipped)

[Copilot]

🟢 Ready to approve

The fix is narrowly scoped, addresses the reported failure mode, and includes a targeted regression test validating the behavior.

This review doesn't count toward merge requirements. Sign up for the private preview to control whether Copilot approvals count.

Pull request overview

Fixes a Kiota client-generation failure for trailing-slash paths (e.g., /test/) whose responses return an array of inline objects by ensuring inline model naming falls back to the existing EmptyPathSegment placeholder instead of producing an empty declaration name.

Changes:

• Extended OpenApiUrlTreeNodeExtensions.GetClassName to accept an optional placeholder fallback used when the computed segment name is empty.
• Applied the trailing-slash placeholder when deriving names for regular, inherited, and composed inline model declarations during model creation.
• Added a regression test covering an inline object array response from a trailing-slash path, plus a changelog entry.

File summaries

File	Description
tests/Kiota.Builder.Tests/KiotaBuilderTests.cs	Adds regression coverage for /test/ returning an array of inline objects and verifies the inline model uses the trailing-slash placeholder name.
src/Kiota.Builder/KiotaBuilder.cs	Passes the trailing-slash placeholder into inline model naming paths (regular/inherited/composed) to prevent empty declaration names.
src/Kiota.Builder/Extensions/OpenApiUrlTreeNodeExtensions.cs	Adds a placeholder parameter to GetClassName and routes it to the shared segment-name logic.
CHANGELOG.md	Documents the fix for trailing-slash inline-object-array generation.

Review details

• Files reviewed: 4/4 changed files
• Comments generated: 0
• Review effort level: Lite

We're testing this review assessment. Please use 👍 or 👎 to tell us if it's correct.