Fix for strange generator trampoline issue

Author: ondrejmirtes

src/Analyser/Generator/GeneratorNodeScopeResolver.php

@@ -182,6 +182,7 @@ private function runTrampoline(
 			if ($pendingFibersGen->valid()) {
 				$stack[] = $gen;
 				$gen = new IdentifiedGeneratorInStack($pendingFibersGen, new Stmt\Expression(new Node\Scalar\String_('pendingFibers')), null, null);
+				$gen->sendResultOnComplete = false;
 			}
 
 			if ($gen->generator->valid()) {
@@ -293,6 +294,7 @@ private function runTrampoline(
 			}
 
 			$result = $gen->generator->getReturn();
+			$sendResult = $gen->sendResultOnComplete;
 			if (count($stack) === 0) {
 				foreach ($fibersStorage->pendingFibers as $pending) {
 					$request = $pending['request'];
@@ -320,6 +322,10 @@ private function runTrampoline(
 			}
 
 			$gen = array_pop($stack);
+			if (!$sendResult) {
+				continue;
+			}
+
 			$gen->generator->send($result);
 		}
 	}

src/Analyser/Generator/IdentifiedGeneratorInStack.php

@@ -16,6 +16,8 @@
 final class IdentifiedGeneratorInStack
 {
 
+	public bool $sendResultOnComplete = true;
+
 	/**
 	 * @param (
 	 *     Generator<int, GeneratorTValueType, GeneratorTSendType, StmtAnalysisResult>| // analyseStmt

tests/PHPStan/Analyser/Generator/GeneratorNodeScopeResolverRuleTest.php

@@ -160,6 +160,7 @@ static function (Node $node, Scope $scope) {
 			[
 				['exit through', 666],
 				['Called on GeneratorNodeScopeResolverRule\\Foo, arg: 1', 21],
+				['exit through', 666],
 				['Virtual node invoked: \'foo\', 3', 23],
 				['Called on GeneratorNodeScopeResolverRule\\Foo, arg: \'foo\'', 23],
 			],