Debug: Support presentation.hidden in platform-specific launch config sections

[Copilot]

Launch configurations already support presentation.hidden to hide entries from the debug dropdown, but this setting could not be scoped to a specific OS. This adds support for specifying presentation inside windows, osx, and linux override sections.

Example usage:

{
  "name": "My Config",
  "type": "node",
  "request": "launch",
  "windows": {
    "presentation": {
      "hidden": true
    }
  }
}

Changes

• debug.ts — Added presentation?: IConfigPresentation to IEnvConfig (the type used for platform-specific override sections). Moved IConfigPresentation before IEnvConfig to preserve correct declaration order. Added isDebugConfig type guard to distinguish IConfig from ICompound.

• debugUtils.ts — Added getEffectivePresentationForConfig(config: IConfig) which merges the base presentation with the current-platform override (e.g., windows.presentation on Windows), so per-platform values override base values while non-specified fields are preserved.

• debugConfigurationManager.ts — getConfigurationNames() and getAllConfigurations() now resolve the effective platform-aware presentation before filtering/sorting, so platform-hidden configs are excluded from the dropdown and command palette on the target OS.

Note: The JSON schema already permitted presentation inside platform sections (it was included in the platformSpecificDefinitionId definition via common properties). This change adds the runtime enforcement.

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[Copilot]

Pull request overview

Adds runtime support for scoping presentation.hidden to platform-specific (windows/osx/linux) debug launch overrides so hidden configs are filtered correctly per-OS.

Changes:

• Extend platform override typing to include presentation and add an isDebugConfig type guard.
• Add getEffectivePresentationForConfig to merge base and platform-specific presentation.
• Resolve effective presentation before filtering/sorting configuration lists.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 2 comments.

File	Description
src/vs/workbench/contrib/debug/test/browser/debugUtils.test.ts	Adds unit coverage for platform presentation override merging.
src/vs/workbench/contrib/debug/common/debugUtils.ts	Implements platform-aware presentation resolution helper.
src/vs/workbench/contrib/debug/common/debug.ts	Updates types to allow presentation in platform overrides and adds isDebugConfig.
src/vs/workbench/contrib/debug/browser/debugConfigurationManager.ts	Applies effective presentation before visibility filtering/sorting.