Show macro name in 'this error originates in macro' message

When there are multiple macros in use, it can be difficult to tell
which one was responsible for producing an error.

Author: Aaron1011

tests/ui-internal/default_lint.stderr

@@ -15,7 +15,7 @@ note: the lint level is defined here
 LL | #![deny(clippy::internal)]
    |         ^^^^^^^^^^^^^^^^
    = note: `#[deny(clippy::default_lint)]` implied by `#[deny(clippy::internal)]`
-   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::declare_tool_lint` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

tests/ui-internal/if_chain_style.stderr

@@ -56,7 +56,7 @@ LL | |         }
 LL | |     }
    | |_____^
    |
-   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `__if_chain` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: `let` expression should be above the `if_chain!`
   --> $DIR/if_chain_style.rs:40:9

tests/ui-internal/lint_without_lint_pass.stderr

@@ -15,7 +15,7 @@ note: the lint level is defined here
 LL | #![deny(clippy::internal)]
    |         ^^^^^^^^^^^^^^^^
    = note: `#[deny(clippy::lint_without_lint_pass)]` implied by `#[deny(clippy::internal)]`
-   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `declare_tool_lint` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

tests/ui/assertions_on_constants.stderr

@@ -6,7 +6,7 @@ LL |     assert!(true);
    |
    = note: `-D clippy::assertions-on-constants` implied by `-D warnings`
    = help: remove it
-   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `assert` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: `assert!(false)` should probably be replaced
   --> $DIR/assertions_on_constants.rs:12:5
@@ -15,7 +15,7 @@ LL |     assert!(false);
    |     ^^^^^^^^^^^^^^^
    |
    = help: use `panic!()` or `unreachable!()`
-   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `assert` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: `assert!(true)` will be optimized out by the compiler
   --> $DIR/assertions_on_constants.rs:13:5
@@ -24,7 +24,7 @@ LL |     assert!(true, "true message");
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = help: remove it
-   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `assert` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: `assert!(false, "false message")` should probably be replaced
   --> $DIR/assertions_on_constants.rs:14:5
@@ -33,7 +33,7 @@ LL |     assert!(false, "false message");
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = help: use `panic!("false message")` or `unreachable!("false message")`
-   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `assert` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: `assert!(false, msg.to_uppercase())` should probably be replaced
   --> $DIR/assertions_on_constants.rs:17:5
@@ -42,7 +42,7 @@ LL |     assert!(false, msg.to_uppercase());
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = help: use `panic!(msg.to_uppercase())` or `unreachable!(msg.to_uppercase())`
-   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `assert` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: `assert!(true)` will be optimized out by the compiler
   --> $DIR/assertions_on_constants.rs:20:5
@@ -51,7 +51,7 @@ LL |     assert!(B);
    |     ^^^^^^^^^^^
    |
    = help: remove it
-   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `assert` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: `assert!(false)` should probably be replaced
   --> $DIR/assertions_on_constants.rs:23:5
@@ -60,7 +60,7 @@ LL |     assert!(C);
    |     ^^^^^^^^^^^
    |
    = help: use `panic!()` or `unreachable!()`
-   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `assert` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: `assert!(false, "C message")` should probably be replaced
   --> $DIR/assertions_on_constants.rs:24:5
@@ -69,7 +69,7 @@ LL |     assert!(C, "C message");
    |     ^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = help: use `panic!("C message")` or `unreachable!("C message")`
-   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `assert` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: `debug_assert!(true)` will be optimized out by the compiler
   --> $DIR/assertions_on_constants.rs:26:5
@@ -78,7 +78,7 @@ LL |     debug_assert!(true);
    |     ^^^^^^^^^^^^^^^^^^^^
    |
    = help: remove it
-   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `$crate::assert` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 9 previous errors
 

tests/ui/checked_unwrap/simple_conditionals.stderr

@@ -55,7 +55,7 @@ LL |             $a.unwrap(); // unnecessary
 LL |     m!(x);
    |     ------ in this macro invocation
    |
-   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `m` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: you checked before that `unwrap()` cannot fail, instead of checking and unwrapping, it's better to use `if let` or `match`
   --> $DIR/simple_conditionals.rs:54:9

tests/ui/collapsible_match2.stderr

@@ -55,7 +55,7 @@ LL |         mac!(res_opt => Ok(val), val => Some(n), foo(n));
    |                            ^^^          ^^^^^^^ with this pattern
    |                            |
    |                            replace this binding
-   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `mac` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: unnecessary nested match
   --> $DIR/collapsible_match2.rs:51:20

tests/ui/crashes/ice-6255.stderr

@@ -7,7 +7,7 @@ LL |         extern crate std as core;
 LL | define_other_core!();
    | --------------------- in this macro invocation
    |
-   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `define_other_core` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to previous error
 

tests/ui/declare_interior_mutable_const/others.stderr

@@ -33,7 +33,7 @@ LL |         const $name: $ty = $e;
 LL | declare_const!(_ONCE: Once = Once::new()); //~ ERROR interior mutable
    | ------------------------------------------ in this macro invocation
    |
-   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `declare_const` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 4 previous errors
 

tests/ui/declare_interior_mutable_const/traits.stderr

@@ -15,7 +15,7 @@ LL |         const $name: $ty = $e;
 LL |     declare_const!(ANOTHER_ATOMIC: AtomicUsize = Self::ATOMIC); //~ ERROR interior mutable
    |     ----------------------------------------------------------- in this macro invocation
    |
-   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `declare_const` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: a `const` item should never be interior mutable
   --> $DIR/traits.rs:43:5

tests/ui/deref_addrof.stderr

@@ -57,7 +57,7 @@ LL |         *& $visitor
 LL |         m!(self)
    |         -------- in this macro invocation
    |
-   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `m` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: immediately dereferencing a reference
   --> $DIR/deref_addrof.rs:51:9
@@ -68,7 +68,7 @@ LL |         *& mut $visitor
 LL |         m_mut!(self)
    |         ------------ in this macro invocation
    |
-   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
+   = note: this error originates in the macro `m_mut` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: aborting due to 10 previous errors