…6487)

## Summary

Introduce `FEATURE_CORPROFILER` as a build-level toggle that controls
whether `PROFILING_SUPPORTED`, `PROFILING_SUPPORTED_DATA`, and
`FEATURE_PROFAPI_ATTACH_DETACH` are defined. On WASM,
`FEATURE_CORPROFILER` is set to 0, disabling ICorProfiler support which
is not meaningful on that target.

## Changes

### Build system
- **`clrfeatures.cmake`**: Define `FEATURE_CORPROFILER=1` by default,
set to 0 for `CLR_CMAKE_TARGET_ARCH_WASM`.
- **`clrdefinitions.cmake`**: Gate `PROFILING_SUPPORTED`,
`PROFILING_SUPPORTED_DATA`, and `FEATURE_PROFAPI_ATTACH_DETACH` on
`FEATURE_CORPROFILER`. Previously `FEATURE_PROFAPI_ATTACH_DETACH` was
unconditionally defined — this is now correctly co-located.
- **`clr.featuredefines.props`**: Set `ProfilingSupportedBuild=false`
for WASM targets.

### VM code (`#ifdef PROFILING_SUPPORTED` guards)
Added guards around profiling-specific code paths in:
- `asynccontinuations.cpp` — class unload notifications
- `ceeload.cpp` — profiler type/attribute count fields
- `comdependenthandle.cpp` / `marshalnative.cpp` — GC handle profiler
slow-path checks
- `exceptionhandling.cpp` — profiler exception notifications
- `gcenv.ee.cpp` — finalizable object profiler callback
- `jitinterface.cpp` — `CORProfilerTrackTransitions()` check (preserving
`IsILStub()` unconditionally for debugger support)
- `prestub.cpp` / `readytoruninfo.cpp` — profiler transition/image
checks
- `runtimehandles.cpp` — dynamic method unload notifications
- `threads.cpp` / `threads.h` — profiler filter context and callback
state fields
- `eetoprofinterfaceimpl.h` — entire header guarded

### cDAC (data contract)
- `datadescriptor.inc`: Conditionally emit `ProfControlBlock` type,
`ProfilerFilterContext` thread field, `ProfilerControlBlock` global
pointer, and `ReJIT` contract under `#ifdef PROFILING_SUPPORTED`.
- `Thread.cs`: Use `TryGetValue` for `ProfilerFilterContext` (matching
existing `TEB` pattern) to handle the field being absent on
non-profiling targets.

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

…_CORPROFILER

PR dotnet#126487 disabled FEATURE_CORPROFILER for tvOS, which removes profiler
fields from the Thread struct (m_pProfilerFilterContext,
m_profilerCallbackState, m_dwProfilerEvacuationCounters). This shifts
m_pInterpThreadContext to a lower offset, but asmconstants.h was not
updated to account for the missing 144 bytes of profiler data.

Add PROFILING_SUPPORTED/PROFILING_SUPPORTED_DATA conditionals to select
the correct offset (0x228 for Release, 0xa90 for Debug) when profiling
is disabled.

Fixes internal unified-build failures on tvOS legs (tvOS_Shortstack_arm64,
tvOSSimulator_Shortstack_x64, tvOSSimulator_Shortstack_arm64) on main.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

- Widen the preprocessor guard on m_dwTypeCount, m_dwExportedTypeCount,
  and m_dwCustomAttributeCount from PROFILING_SUPPORTED_DATA to
  PROFILING_SUPPORTED_DATA || FEATURE_METADATA_UPDATER in both ceeload.h
  (declaration) and ceeload.cpp (initialization). PR dotnet#126487 made these
  fields conditional on PROFILING_SUPPORTED_DATA, but
  UpdateNewlyAddedTypes() is guarded by PROFILING_SUPPORTED ||
  FEATURE_METADATA_UPDATER. When profiling is disabled (e.g., Apple
  mobile platforms with FEATURE_CORPROFILER off), the function compiles
  but the fields do not exist, causing build failures.

- Restore ios_arm64 (device) platform for the three iOS smoke test jobs
  in runtime.yml (Mono AOT, NativeAOT, CoreCLR), replacing the
  iossimulator_arm64 workaround from PR dotnet#126406.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>