fix nested write merge

Author: samthor

app/cmd/info.ts

@@ -14,9 +14,11 @@ export default async function cmdInfo(args: InfoArgs) {
 
   const agg = aggregateImports(p);
   const block = createBlock(...agg.rest);
-  const analysis = analyzeBlock(block);
+  const analysis = analyzeBlock(block, { nest: true });
   resolveConst(agg, analysis);
 
+  console.info('analysis:', analysis.vars);
+
   const toplevelVars = new Map<string, VarInfo>();
   const nestedVars = new Map<string, VarInfo>();
   for (const [cand, info] of analysis.vars) {
@@ -59,6 +61,8 @@ export default async function cmdInfo(args: InfoArgs) {
       suffix = ` from ${JSON.stringify(e.import)} (re-export)`;
     } else if (!agg.localConst.has(e.name)) {
       suffix = ` (mutable, may change)`;
+    } else {
+      suffix = ` (const)`;
     }
     console.info(`- ${left}${suffix}`);
   }

lib/internal/analyze/block.ts

@@ -264,7 +264,7 @@ export function analyzeBlock(b: acorn.BlockStatement, args?: { nest?: boolean })
 
           if (info.nested) {
             prev.nested ??= { writes: 0 };
-            prev.nested.writes += prev.nested.writes;
+            prev.nested.writes += info.nested.writes;
           }
         }
         break;