diff --git a/src/Psalm/Internal/Analyzer/FunctionLikeAnalyzer.php b/src/Psalm/Internal/Analyzer/FunctionLikeAnalyzer.php
index b2576a93b..b4bc3b029 100644
--- a/src/Psalm/Internal/Analyzer/FunctionLikeAnalyzer.php
+++ b/src/Psalm/Internal/Analyzer/FunctionLikeAnalyzer.php
@@ -660,7 +660,15 @@ abstract class FunctionLikeAnalyzer extends SourceAnalyzer implements Statements
                     && !TypeAnalyzer::isContainedBy(
                         $codebase,
                         $default_type,
-                        $param_type
+                        $param_type,
+                        false,
+                        false,
+                        $has_scalar_match,
+                        $type_coerced,
+                        $type_coerced_from_mixed,
+                        $to_string_cast,
+                        $type_coerced_from_scalar,
+                        true
                     )
                 ) {
                     if (IssueBuffer::accepts(
diff --git a/src/Psalm/Internal/Analyzer/Statements/Expression/Call/NewAnalyzer.php b/src/Psalm/Internal/Analyzer/Statements/Expression/Call/NewAnalyzer.php
index 0d05622c5..cb2b6ba23 100644
--- a/src/Psalm/Internal/Analyzer/Statements/Expression/Call/NewAnalyzer.php
+++ b/src/Psalm/Internal/Analyzer/Statements/Expression/Call/NewAnalyzer.php
@@ -127,7 +127,8 @@ class NewAnalyzer extends \Psalm\Internal\Analyzer\Statements\Expression\CallAna
                                 $lhs_type_part->param_name,
                                 $lhs_type_part->as_type
                                     ? new Type\Union([$lhs_type_part->as_type])
-                                    : Type::parseString($lhs_type_part->as)
+                                    : Type::parseString($lhs_type_part->as),
+                                $lhs_type_part->defining_class
                             );
 
                             if ($new_type) {
diff --git a/src/Psalm/Internal/Codebase/Populator.php b/src/Psalm/Internal/Codebase/Populator.php
index 02ca3d483..c68882f94 100644
--- a/src/Psalm/Internal/Codebase/Populator.php
+++ b/src/Psalm/Internal/Codebase/Populator.php
@@ -620,6 +620,8 @@ class Populator
                 }
             }
 
+            $parent_interface_storage->dependent_classlikes[strtolower($storage->name)] = true;
+
             $parent_interfaces = array_merge($parent_interfaces, $parent_interface_storage->parent_interfaces);
 
             $this->inheritMethodsFromParent($storage, $parent_interface_storage);