Fix one-line method for anonymous classes

Author: Slamdunk

src/StaticAnalysis/ExecutableLinesFindingVisitor.php

@@ -175,7 +175,7 @@ public function enterNode(Node $node): void
                 );
 
             if ($hasEmptyBody) {
-                if ($node->getEndLine() === $node->getStartLine()) {
+                if ($node->getEndLine() === $node->getStartLine() && isset($this->executableLinesGroupedByBranch[$node->getStartLine()])) {
                     return;
                 }
 

tests/_files/source_for_branched_exec_lines.php

@@ -460,12 +460,18 @@ public function myMethod()
                 {
                     return;                 // +3
                 }
-            }                               // -3
+
+                public function m1(): void {} // +1
+                public function m2(): void {
+                }                           // +1
+                public function m3(): void
+                {}                          // +1
+            }                               // -6
         ;                                   // 0
     }
     public function withComments()
     {
-        $var = 1;                           // +4
+        $var = 1;                           // +7
         /** @var int $var */
         $var = 2;                           // +1
         // C3
@@ -582,7 +588,7 @@ public function multilineVoid(
 trait MyTrait
 {
     public function myTrait()
-    {}                                      // +5
+    {}                                      // +6
 }
 
 abstract class MyAbstractClass implements MyInterface
@@ -597,4 +603,4 @@ final class MyFinalClass extends MyAbstractClass
     public function myMethod(): void
     {
     }                                       // +4
-}
+}