Feat: Add NoUnneededImportAliasFixer (part of #94)

Author: OndraM

Diff for: ecs.php

@@ -76,6 +76,7 @@
 use PhpCsFixer\Fixer\FunctionNotation\ReturnTypeDeclarationFixer;
 use PhpCsFixer\Fixer\FunctionNotation\VoidReturnFixer;
 use PhpCsFixer\Fixer\Import\NoLeadingImportSlashFixer;
+use PhpCsFixer\Fixer\Import\NoUnneededImportAliasFixer;
 use PhpCsFixer\Fixer\Import\NoUnusedImportsFixer;
 use PhpCsFixer\Fixer\Import\OrderedImportsFixer;
 use PhpCsFixer\Fixer\LanguageConstruct\DeclareEqualNormalizeFixer;
@@ -280,13 +281,15 @@
             ReturnTypeDeclarationFixer::class,
 
             VoidReturnFixer::class,
-
+            // Remove leading slashes in `use` clauses.
             NoLeadingImportSlashFixer::class,
-
+            // Imports should not be aliased as the same name.
+            NoUnneededImportAliasFixer::class,
+            // Unused `use` statements must be removed.
             NoUnusedImportsFixer::class,
-
+            // Order `use` statements.
             OrderedImportsFixer::class,
-
+            // Equal sign in declare statement should not be surrounded by spaces.
             DeclareEqualNormalizeFixer::class,
             // Replaces `is_null($var)` expression with `null === $var`
             IsNullFixer::class,

Diff for: tests/Integration/Fixtures/Basic.correct.php.inc

@@ -1,5 +1,7 @@
 <?php declare(strict_types=1);
 
+use Bar\Foo; // NoUnneededImportAliasFixer
+
 class Basic
 {
     public const FOO = 'foo'; // ClassAttributesSeparationFixer
@@ -18,6 +20,9 @@ class Basic
         $className = DateTime::class;
         // ClassReferenceNameCasingFixer
         $date = new \DateTime();
+
+        $aliasedClass = new Foo();
+
         // SingleSpaceAfterConstructFixer
         if ($a == $b) {
             return true;

Diff for: tests/Integration/Fixtures/Basic.wrong.php.inc

@@ -1,5 +1,7 @@
 <?php
 
+use Bar\Foo as Foo; // NoUnneededImportAliasFixer
+
 class Basic
 {
     const FOO = 'foo'; // ClassAttributesSeparationFixer
@@ -17,6 +19,9 @@ class Basic
         $className = DateTime :: class;
         // ClassReferenceNameCasingFixer
         $date = new \datetime();
+
+        $aliasedClass = new Foo();
+
         // SingleSpaceAfterConstructFixer
         if ($a == $b) { return  true; }
         return false; // BlankLineBeforeStatementFixer