Scope no_mangle and export_name warnings to the declarations name

Author: Nemo157

compiler/rustc_lint/src/builtin.rs

@@ -279,25 +279,25 @@ impl EarlyLintPass for UnsafeCode {
 
             ast::ItemKind::Fn(..) => {
                 if attr::contains_name(&it.attrs, sym::no_mangle) {
-                    self.report_unsafe(cx, it.span, |lint| {
+                    self.report_unsafe(cx, it.ident.span, |lint| {
                         lint.build("declaration of a `no_mangle` function").emit();
                     })
                 }
                 if attr::contains_name(&it.attrs, sym::export_name) {
-                    self.report_unsafe(cx, it.span, |lint| {
+                    self.report_unsafe(cx, it.ident.span, |lint| {
                         lint.build("declaration of a function with `export_name`").emit();
                     })
                 }
             }
 
             ast::ItemKind::Static(..) => {
                 if attr::contains_name(&it.attrs, sym::no_mangle) {
-                    self.report_unsafe(cx, it.span, |lint| {
+                    self.report_unsafe(cx, it.ident.span, |lint| {
                         lint.build("declaration of a `no_mangle` static").emit();
                     })
                 }
                 if attr::contains_name(&it.attrs, sym::export_name) {
-                    self.report_unsafe(cx, it.span, |lint| {
+                    self.report_unsafe(cx, it.ident.span, |lint| {
                         lint.build("declaration of a static with `export_name`").emit();
                     })
                 }

src/test/ui/lint/lint-unsafe-code.stderr

@@ -1,8 +1,8 @@
 error: declaration of a `no_mangle` function
-  --> $DIR/lint-unsafe-code.rs:31:14
+  --> $DIR/lint-unsafe-code.rs:31:17
    |
 LL | #[no_mangle] fn foo() {}
-   |              ^^^^^^^^^^^
+   |                 ^^^
    |
 note: the lint level is defined here
   --> $DIR/lint-unsafe-code.rs:3:9
@@ -11,22 +11,22 @@ LL | #![deny(unsafe_code)]
    |         ^^^^^^^^^^^
 
 error: declaration of a `no_mangle` static
-  --> $DIR/lint-unsafe-code.rs:32:14
+  --> $DIR/lint-unsafe-code.rs:32:21
    |
 LL | #[no_mangle] static FOO: u32 = 5;
-   |              ^^^^^^^^^^^^^^^^^^^^
+   |                     ^^^
 
 error: declaration of a function with `export_name`
-  --> $DIR/lint-unsafe-code.rs:34:24
+  --> $DIR/lint-unsafe-code.rs:34:27
    |
 LL | #[export_name = "bar"] fn bar() {}
-   |                        ^^^^^^^^^^^
+   |                           ^^^
 
 error: declaration of a static with `export_name`
-  --> $DIR/lint-unsafe-code.rs:35:24
+  --> $DIR/lint-unsafe-code.rs:35:31
    |
 LL | #[export_name = "BAR"] static BAR: u32 = 5;
-   |                        ^^^^^^^^^^^^^^^^^^^^
+   |                               ^^^
 
 error: declaration of an `unsafe` function
   --> $DIR/lint-unsafe-code.rs:37:1
@@ -107,43 +107,43 @@ LL |     unsafe {}
    |     ^^^^^^^^^
 
 error: declaration of a `no_mangle` function
-  --> $DIR/lint-unsafe-code.rs:21:22
+  --> $DIR/lint-unsafe-code.rs:21:25
    |
 LL |         #[no_mangle] fn foo() {}
-   |                      ^^^^^^^^^^^
+   |                         ^^^
 ...
 LL |     unsafe_in_macro!()
    |     ------------------ in this macro invocation
    |
    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: declaration of a `no_mangle` static
-  --> $DIR/lint-unsafe-code.rs:22:22
+  --> $DIR/lint-unsafe-code.rs:22:29
    |
 LL |         #[no_mangle] static FOO: u32 = 5;
-   |                      ^^^^^^^^^^^^^^^^^^^^
+   |                             ^^^
 ...
 LL |     unsafe_in_macro!()
    |     ------------------ in this macro invocation
    |
    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: declaration of a function with `export_name`
-  --> $DIR/lint-unsafe-code.rs:23:32
+  --> $DIR/lint-unsafe-code.rs:23:35
    |
 LL |         #[export_name = "bar"] fn bar() {}
-   |                                ^^^^^^^^^^^
+   |                                   ^^^
 ...
 LL |     unsafe_in_macro!()
    |     ------------------ in this macro invocation
    |
    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: declaration of a static with `export_name`
-  --> $DIR/lint-unsafe-code.rs:25:32
+  --> $DIR/lint-unsafe-code.rs:25:39
    |
 LL |         #[export_name = "BAR"] static BAR: u32 = 5;
-   |                                ^^^^^^^^^^^^^^^^^^^^
+   |                                       ^^^
 ...
 LL |     unsafe_in_macro!()
    |     ------------------ in this macro invocation