clarify interactions with "class" syntax

Methods under the "class" syntax would also be callable using this
syntax. Lexical methods currently don't exist, but they would be
callable with this syntax if they were added.

Author: haarg

ppcs/ppc0033-ampersand-method-calls.md

@@ -48,6 +48,9 @@ current package's `AUTOLOAD` would be called. If `AUTOLOAD` does not exist, an
 error would be issued. The call would ignore prototypes, just as traditional
 method calls and `&subroutine()` calls do.
 
+Methods defined using the `class` syntax would also be callable using this
+syntax.
+
 ## Backwards Compatibility
 
 The syntax `->&word` is currently a syntax error, so no backwards
@@ -106,8 +109,9 @@ None currently.
 
 ## Future Scope
 
-This syntax would also make sense to use for private method calls in the
-`class` syntax.
+Lexical methods (`my method foo`) are not currently supported under the
+`class` syntax. If they were added, `->&method` would be the preferred way to
+call them.
 
 ## Rejected Ideas