TypeScript 3.7 flags `if` conditions that implicitly coerce a function/method definition. While checking for the `template` presence on a def (actually checking whether we work with Component) in `saveNameToExportMap`, the `if` condition had implicit type coercion. This commit updates the condition to use the `isComponentDef` function (that checks `def.template` against `null` internally) to avoid compilation errors with TypeScript 3.7.
PR Close#34335
c8b5b81516