[Suggestion]BoxedPrimitiveEquality supports detection assertSame(foo, bar) is recommended

[wuchiuwong]

Description of the problem / feature request:

For rule BoxedPrimitiveEquality, assertSame(foo, bar); is also used to determine whether reference is equalalled. It is recommended that this rule supplement the detection of this case,
This rule is implemented in error_prone_core-2.3.4-sources.jar!\com\google\errorprone\bugpatterns\BoxedPrimitiveEquality.java, which is extended from error_prone_core-2.3.4-sources.jar!\com\google\errorprone\bugpatterns\AbstractReferenceEquality.java
In AbstractReferenceEquality.java, the operations for detecting equality are listed, for example: ==, !=, Objects.equals(a, b), a.equals(b),
but assertSame(foo, bar); is not among them, so this situation can not be detected.

Feature requests: what underlying problem are you trying to solve with this feature?

assertSame(c, converter.coerceToCharacter(c));
Assert.assertSame(3, nodes.size());
Assert.assertSame('H', player.getSymbol());

What version of Error Prone are you using?

2.3.4

Have you found anything relevant by searching the web?

no

[graememorgan]

I tend to think assertSame is explicit enough (and unusual enough: it stands out) that this probably isn't worth flagging.

The issue is that boxedLong == otherBoxedLong is misleading.

[cushon]

The issue is that boxedLong == otherBoxedLong is misleading.

We're catching the general case of that in http://errorprone.info/bugpattern/BoxedPrimitiveEquality