markLiveExport = name => {
        for (const importTo of topLevelExported[name]) {
          liveExportMap[importTo] = [name, true];
        }
        return hLiveId;
      }
Adds an exported name to the module static record private metadata,
indicating that it is updated live as opposted to a constant
or variable that is only initialized once and never reassigned.

Any top-level exported `function`, `let`, or `var` declaration is a
"live" binding unless it's initialized and never reassigned anywhere
in the module.
As are any other top-level exported `var` declarations because they
require hoisting.

This method gets called in the transform phase.
The returned hidden variable name may be used to transform
a declaration, particularly for an export class statement.

@param {string} name - the local name of the exported variable.