AOT: layout partial chain fixture (conditional includes in layout.php, #784) #807

Problem

examples/003-MiniWebApp/templates/layout.php performs a second include tier — conditional partials based on $title:

if ('Home' === $title) {
    include __DIR__ . '/home.php';
} elseif ('Hello' === $title) {
    include __DIR__ . '/hello.php';
}

#739 ✅ closed method_include_void.phpt (void method + single trailing include). #776 tracks Router render* + first include. #784 tracks the layout branch includes in the full app.

There is no minimal AOT fixture for nested conditional includes inside a layout template — the pattern that differs from a single include in a void method.

Goal

test/fixtures/aot/cases/layout_partial_chain.phpt passes AOT execute with stdout containing a needle from the selected partial (e.g. HomePartial / HelloPartial).

Scope

• Fixture: layout.php + home.php + hello.php + entry.php calling a void renderer
• @group aot-link + execute probe
• Optional: htmlspecialchars() in layout <title> (matches MiniWebApp)

Implementation hints

Reproduce

./script/ci-local.sh --filter layout_partial_chain
docker run --rm -v "$(pwd):/compiler" -w /compiler php-compiler:22.04-dev \
  ./script/ci-local.sh --filter layout_partial_chain

Acceptance criteria

• Fixture execute stdout non-empty with expected partial marker
• When broken, skip/fail cites AOT: layout.php title-branch partial includes (second template tier, #764) #784 / AOT: MiniWebApp native binary CLI execute emits empty stdout (post-link) #764, not AOT: Native user-class object model for phpc build --project #568 (link closed AOT: MiniWebApp phpc build --project native link fails on master (post-#568/#734) #752 ✅)

Dependencies

• AOT: Green method_include_void.phpt and @group aot-link for void+include methods #739 ✅ — void+include baseline
• AOT: Router render* void methods — template include must emit stdout (#764) #776 — Router first include tier
• AOT: layout.php title-branch partial includes (second template tier, #764) #784 — layout integration
• AOT: MiniWebApp native binary CLI execute emits empty stdout (post-link) #764 — project execute

Links

• examples/003-MiniWebApp/templates/layout.php
• Testing: MiniWebApp AOT unskip matrix after #568 (orchestrate #454 #485 #478 #610) #676 step 2 checklist
• ROADMAP 🗺️ ROADMAP: Self-host + web-capable PHP subset (living) #78 Phase 4