….6.0 (#504)

🤖 *This is an automated PR from Repo Assist.*

## Summary

**Task 9 – Testing Improvements**: Add `GenerativePropertiesTests.fs`
with 5 new property tests for generative types.

**Task 10 – Take the Repository Forward**: Update `RELEASE_NOTES.md` to
prepare release 8.6.0.

---

## Changes

### New: `tests/GenerativePropertiesTests.fs`

Five tests covering properties in generative type providers:

1. **Instance read-only property** – presence, type,
`CanRead`/`CanWrite`, non-static getter
2. **Instance read-write property** – getter and setter present, correct
method names
3. **Static read-only property** – presence, static getter
4. **Name-lookup for all properties** – calls `GetProperty` by name for
each of the 4 properties on the generated type; directly exercises the
`ILPropertyDefs` lazy `FindByName` dictionary added in #502
5. **Property count** – verifies the correct number of properties is
emitted

### Updated: `RELEASE_NOTES.md`

Added 8.6.0 entry documenting:
- Bug fix: `ProvidedTypeDefinition.Logger` creating a new delegate
reference on each call (#501)
- Refactor/Performance: `ILFieldDefs`/`ILEventDefs`/`ILPropertyDefs`
concrete classes with lazy O(1) name-lookup caches (#502)
- These new tests

---

## Test Status

✅ **136/136 tests pass** (baseline was 131; 5 new tests added, all
green)

```
Passed!  - Failed: 0, Passed: 136, Skipped: 0, Total: 136
```




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…ase 8.7.0 (#506)

🤖 *This is an automated pull request from Repo Assist.*

## Summary

Adds `GenerativeCustomAttributeTests.fs` — 5 regression tests for custom
attribute encoding in the generative IL writer. These cover attribute
targets and argument types not previously exercised by the existing
tests in `BasicGenerativeProvisionTests.fs` (which only tested
attributes on *properties*).

Also updates `RELEASE_NOTES.md` with a new `8.7.0` entry covering this
and the previously-merged `GenerativeMethodsTests` (#505).

## New tests

| Test | What it verifies |
|------|-----------------|
| `Custom attribute on a generative type round-trips correctly` |
`ObsoleteAttribute(string, bool)` placed on the *type definition itself*
|
| `Custom attribute with bool constructor argument round-trips
correctly` | `bool` values survive the ECMA-335 encode/decode path |
| `Custom attribute with enum constructor argument round-trips
correctly` | `DebuggerBrowsableAttribute(DebuggerBrowsableState.Never)`
— enum arg decoded as underlying int |
| `Multiple custom attributes on a single generative method are all
preserved` | `defineCustomAttrs` writes **all** attributes, not just the
first |
| `Custom attribute on a generative method has correct string argument`
| `DescriptionAttribute(string)` on an instance method |

## Root cause / motivation

Several custom-attribute encoding bugs were fixed in earlier PRs
(`#432`, `#490`, `#501`). This PR adds focused regression tests for the
remaining un-covered paths:
- attributes on **types** (not just members)  
- attributes on **methods** (not just properties)  
- **bool** and **enum** constructor argument encoding  
- multiple attributes on a single member

## Test Status

```
Passed! - Failed: 0, Passed: 147, Skipped: 0, Total: 147, Duration: 7 s
```
All 147 tests pass (142 pre-existing + 5 new).




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