Add step metadata to RustAnalyzerProcMacroSrv

Author: Kobzol

src/bootstrap/src/core/build_steps/tool.rs

@@ -1179,6 +1179,14 @@ impl Step for RustAnalyzerProcMacroSrv {
 
         tool_result
     }
+
+    fn metadata(&self) -> Option<StepMetadata> {
+        // FIXME: fix ToolRust staging logic
+        Some(
+            StepMetadata::build("rust-analyzer-proc-macro-srv", self.target)
+                .built_by(self.compiler.with_stage(self.compiler.stage - 1)),
+        )
+    }
 }
 
 #[derive(Debug, Clone, Hash, PartialEq, Eq)]

src/bootstrap/src/core/builder/tests.rs

@@ -1096,6 +1096,7 @@ mod snapshot {
         [dist] docs <host>
         [doc] std 2 <host> crates=[]
         [dist] mingw <host>
+        [build] rustc 0 <host> -> rust-analyzer-proc-macro-srv 1 <host>
         [build] rustc 0 <host> -> GenerateCopyright 1 <host>
         [dist] rustc <host>
         [dist] rustc 1 <host> -> std 1 <host>
@@ -1288,6 +1289,7 @@ mod snapshot {
         [build] rustc 1 <host> -> rustc 2 <target1>
         [build] rustc 1 <host> -> WasmComponentLd 2 <target1>
         [build] rustdoc 1 <target1>
+        [build] rustc 0 <host> -> rust-analyzer-proc-macro-srv 1 <target1>
         [build] rustc 0 <host> -> GenerateCopyright 1 <host>
         [dist] rustc <target1>
         [dist] rustc 1 <host> -> std 1 <target1>