Do not filter empty passes & Make CTFE Clippy into lintless pass

Author: blyxyas

clippy_lints/src/ctfe.rs

@@ -1,29 +1,16 @@
 use rustc_hir::def_id::LocalDefId;
 use rustc_hir::intravisit::FnKind;
 use rustc_hir::{Body,FnDecl};
-use rustc_lint::Level::Deny;
-use rustc_lint::{LateContext,LateLintPass,Lint};
+use rustc_lint::{LateContext,LateLintPass};
 use rustc_session::declare_lint_pass;
 use rustc_span::Span;
 
-/// Ensures that Constant-time Function Evaluation is being done (specifically, MIR lint passes).
-/// As Clippy deactivates codegen, this lint ensures that CTFE (used in hard errors) is still ran.
-pubstaticCLIPPY_CTFE:&Lint = &Lint{
-name:&"clippy::CLIPPY_CTFE",
-default_level:Deny,
-desc:"Ensure CTFE is being made",
-edition_lint_opts:None,
-report_in_external_macro:true,
-future_incompatible:None,
-is_externally_loaded:true,
-crate_level_only:false,
-eval_always:true,
- ..Lint::default_fields_for_macro()
-};
 
-// No static CLIPPY_CTFE_INFO because we want this lint to be invisible
-
-declare_lint_pass!{ClippyCtfe => [CLIPPY_CTFE]}
+declare_lint_pass!{
+/// Ensures that Constant-time Function Evaluation is being done (specifically, MIR lint passes).
+/// As Clippy deactivates codegen, this lint ensures that CTFE (used in hard errors) is still ran.
+ClippyCtfe => []
+}
 
 impl<'tcx>LateLintPass<'tcx>forClippyCtfe{
 fncheck_fn(