git: openjdk/babylon: code-reflection: Simplified bld script and added stricter file types

[Gary Frost]

Changeset: fa4dd443
Branch: code-reflection
Author:    Gary Frost <gfrost at openjdk.org>
Date:      2024-10-31 11:32:19 +0000
URL:       https://git.openjdk.org/babylon/commit/fa4dd44395e6093c5ca5b5676c9f6381e5d2833d

Simplified bld script and added stricter file types

! hat/bld
+ hat/bldr/Bldr.java
- hat/bldr/src/main/java/bldr/Bldr.java
! hat/hatrun
! hat/sanity