Inconsistent naming of properties for retrieving a generic parameter clause on decl nodes

[AnthonyLatsis]

Description

All applicable declaration nodes except EnumDeclSyntax use genericParameterClause. The respective property of EnumDeclSyntax is called genericParameters.

Environment

93e905c

Steps to Reproduce

No response

[ahoppen]

Tracked in Apple’s issue tracker as rdar://109533859

[TTOzzi]

Hello @ahoppen @kimdv !
Could you please assign me to this task?
I plan to change the genericParameters of EnumDeclSyntax to genericParameterClause uniformly and keep the existing genericParameters with a deprecated annotation.

[TTOzzi]

Thank you kimdv! 😃