Compile in opcache without COMPILE_IGNORE_INTERNAL_CLASSES

I don't believe there's a reason to compile with this flag. We don't rely on
fixed addresses anyway, relying on the signatures of the symbols themselves
should be fine.

The same goes for file cache itself, as we don't allow loading cache files
across PHP versions.

Author: iluuu1994

ext/opcache/ZendAccelerator.c

@@ -1809,7 +1809,6 @@ static zend_persistent_script *opcache_compile_file(zend_file_handle *file_handl
 	zend_try {
 		orig_compiler_options = CG(compiler_options);
 		CG(compiler_options) |= ZEND_COMPILE_HANDLE_OP_ARRAY;
-		CG(compiler_options) |= ZEND_COMPILE_IGNORE_INTERNAL_CLASSES;
 		CG(compiler_options) |= ZEND_COMPILE_DELAYED_BINDING;
 		CG(compiler_options) |= ZEND_COMPILE_NO_CONSTANT_SUBSTITUTION;
 		CG(compiler_options) |= ZEND_COMPILE_IGNORE_OTHER_FILES;