First integrated version of borrow visualizer in rls

gistfile1.txt

 ~/programming/rls/test_data/hover > master ●✚ > ../../target/debug/rls .
Initialising (look for `diagnosticsEnd` message)...
> 1: Init(
    InitializeResult {
        capabilities: ServerCapabilities {
            text_document_sync: Some(
                Incremental
            ),
            hover_provider: Some(
                true
            ),
            completion_provider: Some(
                CompletionOptions {
                    resolve_provider: Some(
                        true
                    ),
                    trigger_characters: [
                        ".",
                        ":"
                    ]
                }
            ),
            signature_help_provider: Some(
                SignatureHelpOptions {
                    trigger_characters: Some(
                        []
                    )
                }
            ),
            definition_provider: Some(
                true
            ),
            references_provider: Some(
                true
            ),
            document_highlight_provider: Some(
                true
            ),
            document_symbol_provider: Some(
                true
            ),
            workspace_symbol_provider: Some(
                true
            ),
            code_action_provider: Some(
                false
            ),
            code_lens_provider: None,
            document_formatting_provider: Some(
                false
            ),
            document_range_formatting_provider: Some(
                false
            ),
            document_on_type_formatting_provider: None,
            rename_provider: Some(
                false
            )
        }
    }
)
{"jsonrpc":"2.0","method":"rustDocument/diagnosticsBegin","params":null}
{"jsonrpc":"2.0","method":"rustDocument/diagnosticsEnd","params":null}
borrows src/main.rs 20 9
2: BorrowInfo(
    Borrows {
        assignments: [
            Assignment {
                range: Range {
                    start: Position {
                        line: 20,
                        character: 24
                    },
                    end: Position {
                        line: 25,
                        character: 1
                    }
                }
            },
            Assignment {
                range: Range {
                    start: Position {
                        line: 23,
                        character: 28
                    },
                    end: Position {
                        line: 25,
                        character: 1
                    }
                }
            }
        ],
        loans: [
            Loan {
                kind: ImmBorrow,
                range: Range {
                    start: Position {
                        line: 21,
                        character: 27
                    },
                    end: Position {
                        line: 21,
                        character: 32
                    }
                },
                cause: AddrOf
            },
            Loan {
                kind: ImmBorrow,
                range: Range {
                    start: Position {
                        line: 24,
                        character: 25
                    },
                    end: Position {
                        line: 24,
                        character: 31
                    }
                },
                cause: AddrOf
            }
        ],
        moves: []
    }
)
>