Stubtest exceptions for sys, symtable, sysconfig and tarfile (#5138)

stdlib/symtable.pyi

@@ -1,9 +1,10 @@
 import sys
-from typing import List, Sequence, Text, Tuple
+from typing import Any, List, Optional, Sequence, Text, Tuple
 
 def symtable(code: Text, filename: Text, compile_type: Text) -> SymbolTable: ...
 
 class SymbolTable(object):
+    def __init__(self, raw_table: Any, filename: str) -> None: ...
     def get_type(self) -> str: ...
     def get_id(self) -> int: ...
     def get_name(self) -> str: ...
@@ -29,6 +30,12 @@ class Class(SymbolTable):
     def get_methods(self) -> Tuple[str, ...]: ...
 
 class Symbol(object):
+    if sys.version_info >= (3, 8):
+        def __init__(
+            self, name: str, flags: int, namespaces: Optional[Sequence[SymbolTable]] = ..., *, module_scope: bool = ...
+        ) -> None: ...
+    else:
+        def __init__(self, name: str, flags: int, namespaces: Optional[Sequence[SymbolTable]] = ...) -> None: ...
     def get_name(self) -> str: ...
     def is_referenced(self) -> bool: ...
     def is_parameter(self) -> bool: ...

stdlib/sysconfig.pyi

@@ -11,7 +11,7 @@ def get_path(name: str, scheme: str = ..., vars: Optional[Dict[str, Any]] = ...,
 def get_paths(scheme: str = ..., vars: Optional[Dict[str, Any]] = ..., expand: bool = ...) -> Dict[str, str]: ...
 def get_python_version() -> str: ...
 def get_platform() -> str: ...
-def is_python_build() -> bool: ...
-def parse_config_h(fp: IO[Any], vars: Optional[Dict[str, Any]]) -> Dict[str, Any]: ...
+def is_python_build(check_home: bool = ...) -> bool: ...
+def parse_config_h(fp: IO[Any], vars: Optional[Dict[str, Any]] = ...) -> Dict[str, Any]: ...
 def get_config_h_filename() -> str: ...
 def get_makefile_filename() -> str: ...