Fix #2543 CardinalityEqualsZero equality comparison check

[schlosna]

Before this PR

Closes #2543

What happened?

PR palantir/tritium#1688 is failing attempting to upgrade to gradle-baseline 5.2.0 with change #2530 on https://github.com/palantir/tritium/blob/13799047a8b715b4ebf395de80deed78a86b734c/tritium-registry/src/main/java/com/palantir/tritium/metrics/registry/TagMap.java#L120-L123

> Task :tritium-registry:compileJava FAILED
/home/circleci/project/tritium-registry/src/main/java/com/palantir/tritium/metrics/registry/TagMap.java:123: error: An unhandled exception was thrown by the Error Prone static analysis plugin.
            if (comparisonResult == 0) {
                                 ^
     Please report this at https://github.com/google/error-prone/issues/new and include the following:
  
     error-prone version: 2.18.0
     BugPattern: CardinalityEqualsZero
     Stack Trace:
     java.lang.IllegalStateException: Expected expression 'comparisonResult' to be a method invocation or field access, but was IDENTIFIER
  	at com.google.errorprone.util.ASTHelpers.getReceiver(ASTHelpers.java:605)
  	at com.palantir.baseline.errorprone.CardinalityEqualsZero.matchBinary(CardinalityEqualsZero.java:61)
  	at com.google.errorprone.scanner.ErrorProneScanner.processMatchers(ErrorProneScanner.java:449)
  	at com.google.errorprone.scanner.ErrorProneScanner.visitBinary(ErrorProneScanner.java:512)
  	at com.google.errorprone.scanner.ErrorProneScanner.visitBinary(ErrorProneScanner.java:150)

After this PR

==COMMIT_MSG==
Fix #2543 CardinalityEqualsZero equality comparison check
==COMMIT_MSG==

Possible downsides?

[changelog-app]

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Type

• Feature
• Improvement
• Fix
• Break
• Deprecation
• Manual task
• Migration

Description

Fix #2543 CardinalityEqualsZero equality comparison check

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[carterkozak]

thanks!

[svc-autorelease]

Released 5.3.0