[Bug]: Semantic walker doesn't fire various exit methods

[swatkatz]

Describe the bug

The emit is missing from these methods.

Reproduction

navigateInterfaceType(type: Interface, context: NavigationContext) {
     context.emit("exitInterface")

navigateEnumType(type: Enum, context: NavigationContext) {
    context.emit("exitEnum")

navigateUnionType(type: Union, context: NavigationContext) {
    context.emit("exitUnion")


function navigateUnionTypeVariant(type: UnionVariant, context: NavigationContext) {
     context.emit("exitUnionVariant")

Checklist

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• The provided reproduction is a minimal reproducible example of the bug.