Add support for mir::TerminatorKind::TailCall in clippy

Author: WaffleLapkin

src/tools/clippy/clippy_utils/src/qualify_min_const_fn.rs

@@ -285,15 +285,16 @@ fn check_terminator<'tcx>(
             Err((span, "const fn generators are unstable".into()))
         },
 
-        TerminatorKind::Call {
+        TerminatorKind::Call { 
             func,
             args,
             call_source: _,
             destination: _,
             target: _,
             unwind: _,
             fn_span: _,
-        } => {
+        }
+        | TerminatorKind::TailCall { func, args, fn_span: _ } => {
             let fn_ty = func.ty(body, tcx);
             if let ty::FnDef(fn_def_id, _) = *fn_ty.kind() {
                 if !is_const_fn(tcx, fn_def_id, msrv) {