Ghost parse errors persist due to incremental analysis #3056
Description
Bug report
Code snippet that reproduces the problem
Given the following:
Class1.php
<?php
namespace test;
class Class1{and Class2.php
<?php
namespace test;
class Class2 extends Class1{
}produces the below errors (as expected):
------ ----------------------------------------
Line Class1.php
------ ----------------------------------------
8 Syntax error, unexpected EOF on line 8
------ ----------------------------------------
------ ----------------------------------------------------------------------
Line Class2.php
------ ----------------------------------------------------------------------
ParseError (syntax error, unexpected end of file, expecting function
(T_FUNCTION) or const (T_CONST)) thrown while autoloading class
test\Class2.
5 ParseError (syntax error, unexpected end of file, expecting function
(T_FUNCTION) or const (T_CONST)) thrown while autoloading class
test\Class1.
------ ----------------------------------------------------------------------
However, after fixing the parse error in Class1.php, the following errors persist unless the result cache is destroyed manually:
------ ----------------------------------------------------------------------
Line Class2.php
------ ----------------------------------------------------------------------
ParseError (syntax error, unexpected end of file, expecting function
(T_FUNCTION) or const (T_CONST)) thrown while autoloading class
test\Class2.
5 ParseError (syntax error, unexpected end of file, expecting function
(T_FUNCTION) or const (T_CONST)) thrown while autoloading class
test\Class1.
------ ----------------------------------------------------------------------
Not able to reproduce on phpstan.org due to unable to provide multiple files.
Expected output
After fixing the parse error, no errors should be reported.