Rename tests named with mbe to use macro instead

Most macro tests use `macro` in the name, making it easy to find and run
tests relevant to macros. However, a few use `mbe` instead. Rename those
to say `macro`.

Author: joshtriplett

tests/ui/async-await/async-fn/mbe-async-trait-bound-theoretical-regression.rs renamed to tests/ui/async-await/async-fn/macro-async-trait-bound-theoretical-regression.rs

@@ -1,5 +1,5 @@
 error: ty
-  --> $DIR/mbe-async-trait-bound-theoretical-regression.rs:8:19
+  --> $DIR/macro-async-trait-bound-theoretical-regression.rs:8:19
    |
 LL |     ($ty:ty) => { compile_error!("ty"); };
    |                   ^^^^^^^^^^^^^^^^^^^^
@@ -10,7 +10,7 @@ LL | demo! { impl async Trait }
    = note: this error originates in the macro `demo` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: ty
-  --> $DIR/mbe-async-trait-bound-theoretical-regression.rs:8:19
+  --> $DIR/macro-async-trait-bound-theoretical-regression.rs:8:19
    |
 LL |     ($ty:ty) => { compile_error!("ty"); };
    |                   ^^^^^^^^^^^^^^^^^^^^
@@ -21,7 +21,7 @@ LL | demo! { dyn async Trait }
    = note: this error originates in the macro `demo` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0658]: `async` trait bounds are unstable
-  --> $DIR/mbe-async-trait-bound-theoretical-regression.rs:15:14
+  --> $DIR/macro-async-trait-bound-theoretical-regression.rs:15:14
    |
 LL | demo! { impl async Trait }
    |              ^^^^^
@@ -32,7 +32,7 @@ LL | demo! { impl async Trait }
    = help: use the desugared name of the async trait, such as `AsyncFn`
 
 error[E0658]: `async` trait bounds are unstable
-  --> $DIR/mbe-async-trait-bound-theoretical-regression.rs:18:13
+  --> $DIR/macro-async-trait-bound-theoretical-regression.rs:18:13
    |
 LL | demo! { dyn async Trait }
    |             ^^^^^

tests/ui/async-await/async-fn/mbe-async-trait-bound-theoretical-regression.stderr renamed to tests/ui/async-await/async-fn/macro-async-trait-bound-theoretical-regression.stderr

@@ -1,5 +1,5 @@
 error: this file contains an unclosed delimiter
-  --> $DIR/mbe_missing_right_paren.rs:3:19
+  --> $DIR/macro-missing-right-paren.rs:3:19
    |
 LL | macro_rules! abc(ؼ
    |                 - ^

tests/ui/parser/macro/mbe-bare-trait-object-maybe-trait-bound.rs renamed to tests/ui/parser/macro/macro-bare-trait-object-maybe-trait-bound.rs

@@ -1,5 +1,5 @@
 error: expected identifier, found `]`
-  --> $DIR/mbe-bare-trait-objects-const-trait-bounds.rs:20:16
+  --> $DIR/macro-bare-trait-objects-const-trait-bounds.rs:20:16
    |
 LL |     ($Type:ty) => {
    |      -------- while parsing argument for this `ty` macro fragment
@@ -8,7 +8,7 @@ LL | check! { [const] Trait }
    |                ^ expected identifier
 
 error[E0658]: const trait impls are experimental
-  --> $DIR/mbe-bare-trait-objects-const-trait-bounds.rs:20:11
+  --> $DIR/macro-bare-trait-objects-const-trait-bounds.rs:20:11
    |
 LL | check! { [const] Trait }
    |           ^^^^^

tests/ui/parser/macro/mbe-dotdotdot-may-not-begin-a-type.rs renamed to tests/ui/parser/macro/macro-dotdotdot-may-not-begin-a-type.rs

@@ -1,5 +1,5 @@
 error: ty
-  --> $DIR/mbe-const-trait-bound-theoretical-regression.rs:8:19
+  --> $DIR/macro-const-trait-bound-theoretical-regression.rs:8:19
    |
 LL |     ($ty:ty) => { compile_error!("ty"); };
    |                   ^^^^^^^^^^^^^^^^^^^^
@@ -10,7 +10,7 @@ LL | demo! { impl const Trait }
    = note: this error originates in the macro `demo` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: ty
-  --> $DIR/mbe-const-trait-bound-theoretical-regression.rs:8:19
+  --> $DIR/macro-const-trait-bound-theoretical-regression.rs:8:19
    |
 LL |     ($ty:ty) => { compile_error!("ty"); };
    |                   ^^^^^^^^^^^^^^^^^^^^
@@ -21,7 +21,7 @@ LL | demo! { dyn const Trait }
    = note: this error originates in the macro `demo` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0658]: const trait impls are experimental
-  --> $DIR/mbe-const-trait-bound-theoretical-regression.rs:15:14
+  --> $DIR/macro-const-trait-bound-theoretical-regression.rs:15:14
    |
 LL | demo! { impl const Trait }
    |              ^^^^^
@@ -31,7 +31,7 @@ LL | demo! { impl const Trait }
    = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
 
 error[E0658]: const trait impls are experimental
-  --> $DIR/mbe-const-trait-bound-theoretical-regression.rs:18:13
+  --> $DIR/macro-const-trait-bound-theoretical-regression.rs:18:13
    |
 LL | demo! { dyn const Trait }
    |             ^^^^^