Fix @psalm-suppress with newline

src/Psalm/Internal/Analyzer/StatementsAnalyzer.php

@@ -229,7 +229,7 @@ class StatementsAnalyzer extends SourceAnalyzer implements StatementsSource
                              * @return string
                              */
                             function ($line) {
-                                return explode(' ', trim($line))[0];
+                                return preg_split('/[\s]+/', $line)[0];
                             },
                             $comments['specials']['psalm-suppress']
                         )

tests/IssueSuppressionTest.php

@@ -79,6 +79,16 @@ class IssueSuppressionTest extends TestCase
                         );
                     }',
             ],
+            'suppressWithNewlineAfterComment' => [
+                '<?php
+                    function foo() : void {
+                        /**
+                         * @psalm-suppress TooManyArguments
+                         * here
+                         */
+                        strlen("a", "b");
+                    }'
+            ],
         ];
     }