Stricter lints

[JonasWanke]

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1. Stricter lints in Frontend #619
   P: Compiler: CLI P: Compiler: Frontend P: Compiler: Language Server P: Compiler: VM T: Refactor +5
   
2. Stricter lints in VM #657
   P: Compiler: VM T: Refactor +2
   
3. Stricter lints in Inkwell Backend #775
   P: Compiler: CLI P: Compiler: Inkwell Backend T: Refactor +3
   
4. Stricter lints in Fuzzer #658
   P: Compiler: Fuzzer T: Refactor +2
   
5. Stricter lints in Formatter #654
   P: Compiler: Formatter T: Refactor +2
   
6. Stricter lints in Language Server #691
   P: Compiler: Frontend P: Compiler: Language Server T: Refactor +3
   
7. Stricter lints in CLI #760
   P: Compiler: CLI T: Refactor +2
   
8. Configure lints for workspace: Tracking Issue for [lints] table RFC 3389 rust-lang/cargo#12115