error: this expression always evaluates to true
  --> tests/ui/const_is_empty.rs:5:8
   |
LL |     if "".is_empty() {
   |        ^^^^^^^^^^^^^
   |
   = note: `-D clippy::const-is-empty` implied by `-D warnings`
   = help: to override `-D warnings` add `#[allow(clippy::const_is_empty)]`

error: this expression always evaluates to false
  --> tests/ui/const_is_empty.rs:8:8
   |
LL |     if "foobar".is_empty() {
   |        ^^^^^^^^^^^^^^^^^^^

error: this expression always evaluates to true
  --> tests/ui/const_is_empty.rs:14:8
   |
LL |     if b"".is_empty() {
   |        ^^^^^^^^^^^^^^

error: this expression always evaluates to false
  --> tests/ui/const_is_empty.rs:17:8
   |
LL |     if b"foobar".is_empty() {
   |        ^^^^^^^^^^^^^^^^^^^^

error: this expression always evaluates to true
  --> tests/ui/const_is_empty.rs:34:8
   |
LL |     if empty2.is_empty() {
   |        ^^^^^^^^^^^^^^^^^

error: this expression always evaluates to false
  --> tests/ui/const_is_empty.rs:37:8
   |
LL |     if non_empty2.is_empty() {
   |        ^^^^^^^^^^^^^^^^^^^^^

error: this expression always evaluates to false
  --> tests/ui/const_is_empty.rs:60:13
   |
LL |     let _ = value.is_empty();
   |             ^^^^^^^^^^^^^^^^

error: this expression always evaluates to false
  --> tests/ui/const_is_empty.rs:64:13
   |
LL |     let _ = x.is_empty();
   |             ^^^^^^^^^^^^

error: this expression always evaluates to true
  --> tests/ui/const_is_empty.rs:67:13
   |
LL |     let _ = "".is_empty();
   |             ^^^^^^^^^^^^^

error: this expression always evaluates to true
  --> tests/ui/const_is_empty.rs:70:13
   |
LL |     let _ = b"".is_empty();
   |             ^^^^^^^^^^^^^^

error: this expression always evaluates to true
  --> tests/ui/const_is_empty.rs:124:13
   |
LL |     let _ = val.is_empty();
   |             ^^^^^^^^^^^^^^

error: aborting due to 11 previous errors