Fix missing properties

src/Psalm/Checker/ClassLikeChecker.php

@@ -43,6 +43,11 @@ abstract class ClassLikeChecker extends SourceChecker implements StatementsSourc
      */
     protected $namespace;
 
+    /**
+     * @var StatementsSource
+     */
+    protected $source;
+
     /**
      * @var string
      */

src/Psalm/Checker/NamespaceChecker.php

@@ -74,6 +74,13 @@ class NamespaceChecker extends SourceChecker implements StatementsSource
         }
     }
 
+    /**
+     * @param  PhpParser\Node\Stmt\ClassLike $stmt
+     * @param  bool                          $check_classes
+     * @param  bool                          $check_class_statements
+     * @param  bool                          $update_docblocks
+     * @return void
+     */
     public function visitClassLike(PhpParser\Node\Stmt\ClassLike $stmt, $check_classes, $check_class_statements, $update_docblocks)
     {
         $fq_class_name = ClassLikeChecker::getFQCLNFromString($stmt->name, $this->namespace_name, []);

src/Psalm/Checker/ProjectChecker.php

@@ -367,7 +367,7 @@ class ProjectChecker
             require_once($dir_path . self::$config->autoloader);
         }
 
-        $config->collectPredefinedConstants();
+        self::$config->collectPredefinedConstants();
     }
 
     /**

src/Psalm/Checker/StatementsChecker.php

@@ -52,6 +52,21 @@ class StatementsChecker
      */
     protected $aliased_classes = [];
 
+    /**
+     * @var array<string,string>
+     */
+    protected $aliased_classes_flipped = [];
+
+    /**
+     * @var array<string,string>
+     */
+    protected $aliased_constants = [];
+
+    /**
+     * @var array<string,string>
+     */
+    protected $aliased_functions = [];
+
     /**
      * @var string
      */
@@ -108,6 +123,7 @@ class StatementsChecker
         $this->class_name = $this->source->getClassName();
         $this->parent_class = $this->source->getParentClass();
         $this->aliased_classes = $this->source->getAliasedClasses();
+        $this->aliased_classes_flipped = $this->source->getAliasedClassesFlipped();
         $this->aliased_constants = $this->source->getAliasedConstants();
         $this->aliased_functions = $this->source->getAliasedFunctions();
         $this->suppressed_issues = $this->source->getSuppressedIssues();

src/Psalm/StatementsSource.php

@@ -13,6 +13,11 @@ interface StatementsSource
      */
     public function getAliasedClasses();
 
+    /**
+     * @return array<string>
+     */
+    public function getAliasedClassesFlipped();
+
     /**
      * Gets a list of all aliased constants
      *