Copy inferred type when suppressing errors

src/Psalm/Checker/Statements/ExpressionChecker.php

@@ -509,6 +509,7 @@ class ExpressionChecker
             if (self::analyze($statements_checker, $stmt->expr, $context) === false) {
                 return false;
             }
+            $stmt->inferredType = isset($stmt->expr->inferredType) ? $stmt->expr->inferredType : null;
         } elseif ($stmt instanceof PhpParser\Node\Expr\ShellExec) {
             if (IssueBuffer::accepts(
                 new ForbiddenCode(

tests/FunctionCallTest.php

@@ -941,6 +941,13 @@ class FunctionCallTest extends TestCase
                      */
                     function acceptsAShape(array $a): void {}',
             ],
+            'suppressError' => [
+                '<?php
+                    $a = @file_get_contents("foo");',
+                'assertions' => [
+                    '$a' => 'string|false',
+                ],
+            ],
         ];
     }