Description:
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When developing I find that comparison of a scalar and non-scalar is often unintentional and usually indicates a mistake elsewhere in the program.

It would be nice if comparing scalars and non-scalars generated a low-priority error message.

Reproduce code:
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<?php

class A {}

$a = new A;
$b = 3;

echo $a > $b;
?>

Expected result:
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Notice: Comparison of scalar and non-scalar without a typecast. in test.php on line 8
1

Actual result:
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1