Add support for extends/implements renaming

Author: beberlei

features/fix_class_names.feature

@@ -197,3 +197,55 @@ Feature: Fix Class Names
             -new Foo\Foo();
             +new Foo\Bar();
             """
+    Scenario: "Rename class changes that is extended"
+        Given a PHP File named "src/Foo/Bar.php" with:
+            """
+            <?php
+            namespace Foo;
+
+            class Foo
+            {
+            }
+            """
+        Given a PHP File named "src/Foo/Baz.php" with:
+            """
+            <?php
+            namespace Foo;
+
+            class Baz extends Foo
+            {
+            }
+            """
+        When I use refactoring "fix-class-names" with:
+            | arg   | value |
+            | dir   | src/  |
+        Then the PHP File "src/Foo.php" should be refactored:
+            """
+            --- a/src/Foo/Bar.php
+            +++ b/src/Foo/Bar.php
+            @@ -2,5 +2,5 @@
+            namespace Foo;
+
+            -class Foo
+            +class Bar
+             {
+             }
+            --- a/Foo/src/Foo/Bar.php
+            +++ b/Foo/src/Foo/Bar.php
+            @@ -2,5 +2,5 @@
+             namespace Foo;
+
+            -class Foo
+            +class Bar
+             {
+             }
+            --- a/Foo/Baz.php
+            +++ b/Foo/Baz.php
+            @@ -2,5 +2,5 @@
+             namespace Foo;
+
+            -class Baz extends Foo
+            +class Baz extends Bar
+             {
+             }
+            """

src/main/QafooLabs/Refactoring/Adapters/PHPParser/Visitor/PhpNameCollector.php

@@ -17,6 +17,7 @@
 use PHPParser_Node_Name;
 use PHPParser_Node_Stmt_Namespace;
 use PHPParser_Node_Stmt_Use;
+use PHPParser_Node_Stmt_Class;
 use PHPParser_Node_Stmt_UseUse;
 use PHPParser_Node_Expr_New;
 use PHPParser_Node_Expr_StaticCall;
@@ -63,6 +64,28 @@ public function enterNode(PHPParser_Node $node)
             );
         }
 
+        if ($node instanceof PHPParser_Node_Stmt_Class) {
+            if ($node->extends) {
+                $usedAlias = implode('\\', $node->extends->parts);
+
+                $this->nameDeclarations[] = array(
+                    'alias' => $usedAlias,
+                    'fqcn' => $this->fullyQualifiedNameFor($usedAlias),
+                    'line' => $node->extends->getLine(),
+                );
+            }
+
+            foreach ($node->implements as $implement) {
+                $usedAlias = implode('\\', $implement->parts);
+
+                $this->nameDeclarations[] = array(
+                    'alias' => $usedAlias,
+                    'fqcn' => $this->fullyQualifiedNameFor($usedAlias),
+                    'line' => $implement->getLine(),
+                );
+            }
+        }
+
         if ($node instanceof PHPParser_Node_Stmt_Namespace) {
             $this->currentNamespace = implode('\\', $node->name->parts);
             $this->useStatements = array();