Fix interface precedence over method handling

Author: Slamdunk

src/StaticAnalysis/ExecutableLinesFindingVisitor.php

@@ -129,13 +129,17 @@ public function enterNode(Node $node): void
             $node instanceof Node\Expr\Closure ||
             $node instanceof Node\Stmt\Trait_) {
             if ($node instanceof Node\Stmt\Function_ || $node instanceof Node\Stmt\ClassMethod) {
+                $unsets = [];
+
                 foreach ($node->getParams() as $param) {
                     foreach (range($param->getStartLine(), $param->getEndLine()) as $line) {
-                        $this->unsets[$line] = true;
+                        $unsets[$line] = true;
                     }
                 }
 
-                unset($this->unsets[$node->getEndLine()]);
+                unset($unsets[$node->getEndLine()]);
+
+                $this->unsets += $unsets;
             }
 
             $isConcreteClassLike = $node instanceof Node\Stmt\Enum_ || $node instanceof Node\Stmt\Class_ || $node instanceof Node\Stmt\Trait_;

tests/_files/source_for_branched_exec_lines.php

@@ -572,12 +572,17 @@ interface MyInterface
         'string',
     ];
     public function myMethod();
+    public function multiline(
+        \stdClass $var
+    ): \stdClass;
+    public function multilineVoid(
+    ): void;
 }
 
 trait MyTrait
 {
     public function myTrait()
-    {}                                      // +3
+    {}                                      // +5
 }
 
 abstract class MyAbstractClass implements MyInterface