token.cpp: optimized Token::multiCompare() a bit - reduces average Ir from 71 to 63 when scanning test folder (#3525)

lib/token.cpp

@@ -555,11 +555,14 @@ int Token::multiCompare(const Token *tok, const char *haystack, nonneg int varid
 
             do {
                 ++haystack;
-            } while (*haystack != ' ' && *haystack != '|' && *haystack);
 
                 if (*haystack == ' ' || *haystack == '\0') {
                     return -1;
                 }
+                if (*haystack == '|') {
+                    break;
+                }
+            } while (true);
 
             ++haystack;
         }