rename rustc_attr to rustc_attr_parsing and create rustc_attr_data_structures

Author: jdonszelmann

src/attributes.rs

@@ -2,8 +2,8 @@
 use gccjit::FnAttribute;
 use gccjit::Function;
 #[cfg(feature = "master")]
-use rustc_attr::InlineAttr;
-use rustc_attr::InstructionSetAttr;
+use rustc_attr_parsing::InlineAttr;
+use rustc_attr_parsing::InstructionSetAttr;
 #[cfg(feature = "master")]
 use rustc_middle::middle::codegen_fn_attrs::CodegenFnAttrFlags;
 use rustc_middle::ty;

src/lib.rs

@@ -35,7 +35,7 @@ extern crate tracing;
 extern crate rustc_abi;
 extern crate rustc_apfloat;
 extern crate rustc_ast;
-extern crate rustc_attr;
+extern crate rustc_attr_parsing;
 extern crate rustc_codegen_ssa;
 extern crate rustc_data_structures;
 extern crate rustc_errors;