sap.ui.core.js also contains the JSDoc documentation for the following packages
jQuery.sap.
sap.ui.
sap.ui.base
sap.ui.core
sap.ui.model
Eclipse shows the special behaviour that if it doesn't understand the JSDoc comment for a symbol in a file, it stops processing that file. As a side effect, any later JSdoc comment in that file is ignored.
I assume that Eclipse has an issue with some documentation in sap.ui.core.js and therefore stops analysing it.
We need to check where this breaks.