False positive for unnecessary_lambdas

[kentcb]

Describe the issue
Possibly related to #57957, the following triggers the linter:

expect(() => builder.build(), ...);

However, expect takes a dynamic, not necessarily a Function, so changing to a tear-off changes the behavior to evaluate before invoking expect.

Expected behavior
No lint.

[a14n]

Assuming expect takes dynamic as first parameter and builder.build is a method (not a getter) there are no differences between expect(() => builder.build(), ...); and expect(builder.build, ...);

[kentcb]

You're totally right - I forgot to remove the parentheses when converting to tear-off. Classic. That'll teach me for not just using the IDE. Thanks.