minor #22931 SCA with Php Inspections (EA Extended): 2.7 (kalessil)

This PR was squashed before being merged into the 2.7 branch (closes #22931).

Discussion
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SCA with Php Inspections (EA Extended): 2.7

| Q             | A
| ------------- | ---
| Branch?       | 2.7
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | n/a
| License       | MIT
| Doc PR        | n/a

Static Code Analysis with Php Inspections (EA Extended): dead code and control flow tweaks.

Commits
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598ae56cc9 SCA with Php Inspections (EA Extended): 2.7

Author: fabpot

Tests/ContainerBuilderTest.php

@@ -108,7 +108,7 @@ public function testGet()
         }
 
         $builder->register('foobar', 'stdClass')->setScope('container');
-        $this->assertTrue($builder->get('bar') === $builder->get('bar'), '->get() always returns the same instance if the service is shared');
+        $this->assertSame($builder->get('bar'), $builder->get('bar'), '->get() always returns the same instance if the service is shared');
     }
 
     /**