[Analyzer] Cause CompileTimeError in analyzer when use 'Function' as a type:

[lfkdsk]

resolve #45704

1. cause CompileTimeErrorCode.FUNCTION_CLASS_DECLARATION when declare class named 'Function'.
2. cause CompileTimeErrorCode.FUNCTION_MIXIN_DECLARATION when declare mixin named 'Function'.
3. cause CompileTimeErrorCode.FUNCTION_EXTENSION_DECLARATION when declare extension named 'Function'.
4. cause CompileTimeErrorCode.FUNCTION_AS_TYPE_PARAMETER when type parameters contain parma named 'Function'.

[google-cla]

We found a Contributor License Agreement for you (the sender of this pull request), but were unable to find agreements for all the commit author(s) or Co-authors. If you authored these, maybe you used a different email address in the git commits than was used to sign the CLA (login here to double check)? If these were authored by someone else, then they will need to sign a CLA as well, and confirm that they're okay with these being contributed to Google.
In order to pass this check, please resolve this problem and then comment @googlebot I fixed it.. If the bot doesn't comment, it means it doesn't think anything has changed.

ℹ️ Googlers: Go here for more info.

[google-cla]

We found a Contributor License Agreement for you (the sender of this pull request), but were unable to find agreements for all the commit author(s) or Co-authors. If you authored these, maybe you used a different email address in the git commits than was used to sign the CLA (login here to double check)? If these were authored by someone else, then they will need to sign a CLA as well, and confirm that they're okay with these being contributed to Google.
In order to pass this check, please resolve this problem and then comment @googlebot I fixed it.. If the bot doesn't comment, it means it doesn't think anything has changed.

ℹ️ Googlers: Go here for more info.

[lfkdsk]

@googlebot I fixed it.

[mraleph]

For now I assume this is stale. Let me know if it is not.