Added regression test

.github/workflows/e2e-tests.yml

@@ -1836,6 +1836,20 @@ jobs:
             extensions: ":curl"
           - script: "bin/phpstan analyse -l 8 tests/e2e/anon-class/Granularity.php"
             extensions: ""
+          - script: |
+              cd e2e/bug-11359
+              OUTPUT=$(../bashunit assert exit_code "1" "../../bin/phpstan analyse --no-progress --error-format raw --level=8 bug-11359.php")
+              echo "$OUTPUT"
+              ../bashunit assert contains 'e2e/bug-11359/bug-11359.php:3:Function mb_ucfirst not found.' "$OUTPUT"
+            php-version: "8.2"
+            extensions: mbstring
+          - script: |
+              cd e2e/bug-11359
+              OUTPUT=$(../bashunit assert exit_code "0" "../../bin/phpstan analyse --no-progress --error-format raw --level=8 bug-11359.php")
+              echo "$OUTPUT"
+              ../bashunit assert not_contains 'Function mb_ucfirst not found.' "$OUTPUT"
+            php-version: "8.4"
+            extensions: mbstring
           - script: "bin/phpstan analyse -l 8 e2e/phpstan-phpunit-190/test.php -c e2e/phpstan-phpunit-190/test.neon"
             extensions: ""
           - script: "bin/phpstan analyse e2e/only-files-not-analysed-trait/src -c e2e/only-files-not-analysed-trait/ignore.neon"
@@ -2086,7 +2100,7 @@ jobs:
         with:
           coverage: ${{ matrix.coverage || 'none' }}
           ini-values: ${{ matrix.ini-values || '' }}
-          php-version: "8.2"
+          php-version: ${{ matrix.php-version || '8.2' }}
           tools: ${{ matrix.tools }}
           extensions: ${{ matrix.extensions }}
 

e2e/bug-11359/bug-11359.php

@@ -0,0 +1,3 @@
+<?php declare(strict_types = 1);
+
+print mb_ucfirst('hello');