Delete library modifier to highlighting for extern crate

Author: asuto15

src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/highlight.rs

@@ -703,24 +703,7 @@ fn highlight_name_ref_by_syntax(
     };
 
     match parent.kind() {
-        EXTERN_CRATE => {
-            let mut h: Highlight = HlTag::Symbol(SymbolKind::Module).into();
-            let is_crate_root = if let Some(extern_crate) = ast::ExternCrate::cast(parent.clone()) {
-                if let Some(first_segment) = extern_crate.name_ref() {
-                    first_segment.syntax().text() == name.syntax().text()
-                } else {
-                    false
-                }
-            } else {
-                false
-            };
-
-            if is_crate_root {
-                h |= HlMod::CrateRoot;
-            }
-
-            h | HlMod::Library
-        }
+        EXTERN_CRATE => (HlTag::Symbol(SymbolKind::Module) | HlMod::CrateRoot).into(),
         METHOD_CALL_EXPR => ast::MethodCallExpr::cast(parent)
             .and_then(|it| highlight_method_call(sema, krate, &it, edition))
             .unwrap_or_else(|| SymbolKind::Method.into()),

src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/test_data/highlight_doctest.html

@@ -52,12 +52,12 @@
 
 <span class="comment documentation">//! ```rust</span>
 <span class="comment documentation">//!</span><span class="comment documentation"> </span><span class="keyword injected">extern</span><span class="none injected"> </span><span class="keyword injected">crate</span><span class="none injected"> </span><span class="self_keyword crate_root injected">self</span><span class="semicolon injected">;</span>
-<span class="comment documentation">//!</span><span class="comment documentation"> </span><span class="keyword injected">extern</span><span class="none injected"> </span><span class="keyword injected">crate</span><span class="none injected"> </span><span class="module crate_root injected library">std</span><span class="semicolon injected">;</span>
-<span class="comment documentation">//!</span><span class="comment documentation"> </span><span class="keyword injected">extern</span><span class="none injected"> </span><span class="keyword injected">crate</span><span class="none injected"> </span><span class="module crate_root injected library">core</span><span class="semicolon injected">;</span>
-<span class="comment documentation">//!</span><span class="comment documentation"> </span><span class="keyword injected">extern</span><span class="none injected"> </span><span class="keyword injected">crate</span><span class="none injected"> </span><span class="module crate_root injected library">alloc</span><span class="semicolon injected">;</span>
-<span class="comment documentation">//!</span><span class="comment documentation"> </span><span class="keyword injected">extern</span><span class="none injected"> </span><span class="keyword injected">crate</span><span class="none injected"> </span><span class="module crate_root injected library">proc_macro</span><span class="semicolon injected">;</span>
-<span class="comment documentation">//!</span><span class="comment documentation"> </span><span class="keyword injected">extern</span><span class="none injected"> </span><span class="keyword injected">crate</span><span class="none injected"> </span><span class="module crate_root injected library">test</span><span class="semicolon injected">;</span>
-<span class="comment documentation">//!</span><span class="comment documentation"> </span><span class="keyword injected">extern</span><span class="none injected"> </span><span class="keyword injected">crate</span><span class="none injected"> </span><span class="module crate_root injected library">Krate</span><span class="semicolon injected">;</span>
+<span class="comment documentation">//!</span><span class="comment documentation"> </span><span class="keyword injected">extern</span><span class="none injected"> </span><span class="keyword injected">crate</span><span class="none injected"> </span><span class="module crate_root injected">std</span><span class="semicolon injected">;</span>
+<span class="comment documentation">//!</span><span class="comment documentation"> </span><span class="keyword injected">extern</span><span class="none injected"> </span><span class="keyword injected">crate</span><span class="none injected"> </span><span class="module crate_root injected">core</span><span class="semicolon injected">;</span>
+<span class="comment documentation">//!</span><span class="comment documentation"> </span><span class="keyword injected">extern</span><span class="none injected"> </span><span class="keyword injected">crate</span><span class="none injected"> </span><span class="module crate_root injected">alloc</span><span class="semicolon injected">;</span>
+<span class="comment documentation">//!</span><span class="comment documentation"> </span><span class="keyword injected">extern</span><span class="none injected"> </span><span class="keyword injected">crate</span><span class="none injected"> </span><span class="module crate_root injected">proc_macro</span><span class="semicolon injected">;</span>
+<span class="comment documentation">//!</span><span class="comment documentation"> </span><span class="keyword injected">extern</span><span class="none injected"> </span><span class="keyword injected">crate</span><span class="none injected"> </span><span class="module crate_root injected">test</span><span class="semicolon injected">;</span>
+<span class="comment documentation">//!</span><span class="comment documentation"> </span><span class="keyword injected">extern</span><span class="none injected"> </span><span class="keyword injected">crate</span><span class="none injected"> </span><span class="module crate_root injected">Krate</span><span class="semicolon injected">;</span>
 <span class="comment documentation">//! ```</span>
 <span class="keyword">mod</span> <span class="module declaration">outline_module</span><span class="semicolon">;</span>