doc: update extra README status

README.md

@@ -30,9 +30,13 @@ The goal is to produce idiomatic, maintainable Go code as part of a one-off conv
 [ ] Numbered break/continue
 [ ] Goto
 [ ] Comma operator
+[ ] `null` -> `nil`
+[ ] Consts and `define()`
 [ ] `isset`/`unset`
 [ ] `instanceof`
 [ ] `try`/`catch`/`finally`
+	- Intend to implement using err checks, not panic/recover
+	- Any statements within the try block should capture the finally/catch to run within any interior err-check blocks
 [ ] Abandon upon sight of `eval` / `extract` / ...
 [ ] Assignment expressions 
 	- Go doesn't support assignment in rvalues, only as a statement
@@ -41,13 +45,12 @@ The goal is to produce idiomatic, maintainable Go code as part of a one-off conv
 	- [ ] Add hoisting pass
 [ ] Closures
 	- [ ] Handle value/reference captures
-[ ] Sort callbacks
-	- [ ] Transparent conversion to sort.Slice
 [X] Convert top-level calls to `init()`/`main()`
 	- *Currently always `init`*
 [ ] Class/object transformations
 	- [X] Convert `new X` constructor calls to `NewX`
 	- [X] Visibility
+		- [X] Apply PHP visibility modifiers as Go case change
 		- [ ] Call mangled function name at call sites
 		- *PHP variable names are case-sensitive, function names are case-insensitive*
 	- [X] Static methods
@@ -69,6 +72,7 @@ The goal is to produce idiomatic, maintainable Go code as part of a one-off conv
 	- [ ] Standard library transformations
 		- [ ] Track golang package imports
 		- [ ] Handle conflicts between golang stdlib packages / local variable names
+		- [ ] uasort -> sort.Slice
 	- [ ] PHP Superglobal transformations
 		- [ ] `$_SERVER['argv']` to os.Args
 		- [ ] `$_GET['name']` to r.FormValue('name')