[DesignRuleMiner] DesignRuleMiner and grammar are not aligned for expression statements

[SaharMehrpour]

• DesignRuleMiner, assumes comment for expression statement.
• In the grammar, there is no expression statement but only comments.

Solution:
In DesignRuleMiner change all expression statements to comments.
Expressions have many variations, it doesn't make sense to have a detailed UI for it.