Multiple binaries support for launch.json.

Generate unique names on the LSP side.

editors/code/src/debug.ts

@@ -88,8 +88,9 @@ export async function getDebugConfiguration(ctx: Ctx, config: ra.Runnable): Prom
     }
 
     if (debugConfig.name === "run binary") {
-        // A workaround for multiple binaries. It would be better to get proper names on the LSP side.
-        debugConfig.name = `run binary [${path.basename(executable)}]`;
+        // The LSP side: crates\rust-analyzer\src\main_loop\handlers.rs,
+        // fn to_lsp_runnable(...) with RunnableKind::Bin
+        debugConfig.name = `run binary '${path.basename(executable)}'`;
     }
 
     if (debugConfig.cwd) {