Convert all crates to 2018 edition

Author: jyn514

crates/assert-instr-macro/Cargo.toml

@@ -2,6 +2,7 @@
 name = "assert-instr-macro"
 version = "0.1.0"
 authors = ["Alex Crichton <alex@alexcrichton.com>"]
+edition = "2018"
 
 [lib]
 proc-macro = true

crates/assert-instr-macro/src/lib.rs

@@ -8,11 +8,8 @@
 //! `#[test]` function to the original token stream which asserts that the
 //! function itself contains the relevant instruction.
 
-extern crate proc_macro;
-extern crate proc_macro2;
 #[macro_use]
 extern crate quote;
-extern crate syn;
 
 use proc_macro2::TokenStream;
 use quote::ToTokens;

crates/core_arch/src/lib.rs

@@ -68,9 +68,6 @@ extern crate std;
 #[cfg(test)]
 #[macro_use]
 extern crate std_detect;
-#[cfg(test)]
-extern crate stdarch_test;
-
 #[path = "mod.rs"]
 mod core_arch;
 

crates/core_arch/src/x86/avx512vpclmulqdq.rs

@@ -9,7 +9,7 @@ use crate::core_arch::x86::__m256i;
 use crate::core_arch::x86::__m512i;
 
 #[cfg(test)]
-use crate::stdarch_test::assert_instr;
+use stdarch_test::assert_instr;
 
 #[allow(improper_ctypes)]
 extern "C" {

crates/core_arch/src/x86/pclmulqdq.rs

@@ -8,7 +8,7 @@
 use crate::core_arch::x86::__m128i;
 
 #[cfg(test)]
-use crate::stdarch_test::assert_instr;
+use stdarch_test::assert_instr;
 
 #[allow(improper_ctypes)]
 extern "C" {

crates/simd-test-macro/Cargo.toml

@@ -2,6 +2,7 @@
 name = "simd-test-macro"
 version = "0.1.0"
 authors = ["Alex Crichton <alex@alexcrichton.com>"]
+edition = "2018"
 
 [lib]
 proc-macro = true

crates/simd-test-macro/src/lib.rs

@@ -3,8 +3,6 @@
 //! This macro expands to a `#[test]` function which tests the local machine
 //! for the appropriate cfg before calling the inner test function.
 
-extern crate proc_macro;
-extern crate proc_macro2;
 #[macro_use]
 extern crate quote;
 

crates/stdarch-test/Cargo.toml

@@ -2,6 +2,7 @@
 name = "stdarch-test"
 version = "0.1.0"
 authors = ["Alex Crichton <alex@alexcrichton.com>"]
+edition = "2018"
 
 [dependencies]
 assert-instr-macro = { path = "../assert-instr-macro" }

crates/stdarch-test/src/lib.rs

@@ -6,12 +6,8 @@
 #![feature(test)] // For black_box
 #![allow(clippy::missing_docs_in_private_items, clippy::print_stdout)]
 
-extern crate assert_instr_macro;
-extern crate cc;
 #[macro_use]
 extern crate lazy_static;
-extern crate rustc_demangle;
-extern crate simd_test_macro;
 #[macro_use]
 extern crate cfg_if;
 
@@ -25,7 +21,7 @@ cfg_if! {
         use wasm::disassemble_myself;
     } else {
         mod disassembly;
-        use disassembly::disassemble_myself;
+        use crate::disassembly::disassemble_myself;
     }
 }