refactor: consume errors/diag. from rustc_errors

Author: calebcartwright

rustfmt-core/rustfmt-lib/src/syntux/parser.rs

@@ -2,12 +2,11 @@ use std::borrow::Cow;
 use std::panic::{catch_unwind, AssertUnwindSafe};
 use std::path::{Path, PathBuf};
 
+use rustc_errors::{Diagnostic, PResult};
 use rustc_parse::{new_sub_parser_from_file, parser::Parser as RawParser};
 use rustc_span::{DUMMY_SP, Span, symbol::kw};
 use syntax::ast;
-use syntax::errors::Diagnostic;
 use syntax::token::{DelimToken, TokenKind};
-use syntax::parse::PResult;
 
 use crate::syntux::session::ParseSess;
 use crate::{Config, Input};

rustfmt-core/rustfmt-lib/src/syntux/session.rs

@@ -3,10 +3,10 @@ use std::path::Path;
 use std::rc::Rc;
 
 use rustc_data_structures::sync::Send;
+use rustc_errors::emitter::{Emitter, EmitterWriter};
+use rustc_errors::{ColorConfig, Diagnostic, Handler, Level as DiagnosticLevel};
 use rustc_span::{BytePos, source_map::{FilePathMapping, SourceMap}, Span};
 use syntax::ast;
-use syntax::errors::emitter::{ColorConfig, Emitter, EmitterWriter};
-use syntax::errors::{Diagnostic, Handler, Level as DiagnosticLevel};
 use syntax::sess::ParseSess as RawParseSess;
 
 use crate::config::file_lines::LineRange;