Test the non-parse exception that stops the result cache save with a rule

Since the BetterReflection update in 613b1b1, a class that extends
itself is no longer a reflection error, so the last part of the
result-cache-parse-error e2e test failed. A rule that throws
ClassNotFoundException now tests the same branch of the save, in the
result-cache-internal-error fixture.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

Author: 2 people

.github/workflows/e2e-tests.yml

@@ -1367,12 +1367,6 @@ jobs:
               OUTPUT=$(../bashunit assert exit_code "0" "../../bin/phpstan analyse -vvv --error-format raw")
               echo "$OUTPUT"
               ../bashunit assert not_contains 'not found' "$OUTPUT"
-              # A reflection error, here a class that extends itself, still keeps the result cache from
-              # being saved.
-              cp loop/Loop.php src/Loop.php
-              OUTPUT=$(../bashunit assert exit_code "1" "../../bin/phpstan analyse -vvv --error-format raw")
-              echo "$OUTPUT"
-              ../bashunit assert contains 'Result cache was not saved because of non-ignorable exception: Reflection error: Circular reference' "$OUTPUT"
           - script: |
               cd e2e/result-cache-internal-error
               composer dump-autoload
@@ -1382,6 +1376,12 @@ jobs:
               ../bashunit assert contains 'Internal error: The rule crashed.' "$OUTPUT"
               ../bashunit assert contains 'Result cache was not saved' "$OUTPUT"
               test ! -f tmp/resultCache.php
+              # An exception about the analysed code other than a parse error, here a class that is not
+              # found, also keeps the result cache from being saved.
+              OUTPUT=$(../bashunit assert exit_code "1" "../../bin/phpstan analyse -c class-not-found.neon -vvv --error-format raw")
+              echo "$OUTPUT"
+              ../bashunit assert contains 'Result cache was not saved because of non-ignorable exception: Class ResultCacheE2EInternalError\Missing was not found' "$OUTPUT"
+              test ! -f tmp/resultCache.php
           - script: |
               cd e2e/result-cache-string-class
               ../../bin/phpstan analyse

e2e/result-cache-internal-error/class-not-found.neon

@@ -0,0 +1,8 @@
+parameters:
+	level: 8
+	tmpDir: tmp
+	paths:
+		- src
+
+rules:
+	- ResultCacheE2EInternalError\ClassNotFoundRule

e2e/result-cache-internal-error/rule/ClassNotFoundRule.php

@@ -0,0 +1,27 @@
+<?php declare(strict_types = 1);
+
+namespace ResultCacheE2EInternalError;
+
+use PhpParser\Node;
+use PhpParser\Node\Stmt\Function_;
+use PHPStan\Analyser\Scope;
+use PHPStan\Broker\ClassNotFoundException;
+use PHPStan\Rules\Rule;
+
+/**
+ * @implements Rule<Function_>
+ */
+final class ClassNotFoundRule implements Rule
+{
+
+	public function getNodeType(): string
+	{
+		return Function_::class;
+	}
+
+	public function processNode(Node $node, Scope $scope): array
+	{
+		throw new ClassNotFoundException('ResultCacheE2EInternalError\Missing');
+	}
+
+}