Collect types declared in @throws tags and consider them dependencies (1/2)

[micheleorselli]

This first step is a refactoring to simplify DocblockResolver introducing some new support classes

One thing I noticed during this refactoring is even in case of multiple types defined, like

/**
* @Assert\Blank
* @var Foo
*/ 
public $foo

we collect just one. Is that intended? do we want to address it in some way? We could support it using union types
cc @fain182 @AlessandroMinoccheri?

[codecov]

Codecov Report

Attention: Patch coverage is 92.64706% with 5 lines in your changes missing coverage. Please review.

Project coverage is 97.26%. Comparing base (26417fe) to head (a8e518b).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/Analyzer/DocblockTypesResolver.php	90.62%	3 Missing ⚠️
src/Analyzer/Docblock.php	94.11%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main     #507      +/-   ##
============================================
- Coverage     97.31%   97.26%   -0.05%     
  Complexity      624      624              
============================================
  Files            78       79       +1     
  Lines          1748     1758      +10     
============================================
+ Hits           1701     1710       +9     
- Misses           47       48       +1     

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[sonarqubecloud]

Quality Gate passed

Issues
2 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
1.0% Duplication on New Code

See analysis details on SonarQube Cloud

[AlessandroMinoccheri]

@micheleorselli for me, we should fix it in another PR, or at least try to understand deeper the context.

[AlessandroMinoccheri]

LGTM 👍