RFR: 8263358: Update java.lang to use instanceof pattern variable [v3]

[Patrick Concannon]

On Thu, 11 Mar 2021 08:56:00 GMT, Alan Bateman <alanb at openjdk.org> wrote:

>> Patrick Concannon has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   8263358: Refactored equals methods
>
> src/java.base/share/classes/java/lang/module/ModuleDescriptor.java line 313:
> 
>> 311:         @Override
>> 312:         public boolean equals(Object ob) {
>> 313:             if (!(ob instanceof Requires that))
> 
> it would be nicer if you inverted this to return (ob instanced Requires that) && ...
> Same thing for the equals methods in Exports, Opens, Provides, ...

I've refactored the various equals methods now, and they can be viewed in commit e9d9131

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PR: https://git.openjdk.java.net/jdk/pull/2913