ODIN_II language coverage: part-select keyword

[nasrineshraghi]

Description

Verilog language coverage
An indexed Part-select extract a specific range of array which can be a positive integer value. Part-select just accepts the range in the boundary. It consists of two operators: pluscolon and minuscolon.
This is the second type of implementing part-select by using the existing range-ref type.

Related Issue

Motivation and Context

ODIN_II is an FPGA CAD synthesis compiler which accepts Verilog design as an input. For this reason, it needs to support all keyword in the Verilog language which part-select index is one of the operators in this language.

How Has This Been Tested?

adding some new testbench to ODIN for test the new keywords.
add this operator to the existing test benches.

Types of changes

• Bug fix (change which fixes an issue)
• New feature (change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My change requires a change to the documentation
• [ x] I have updated the documentation accordingly
• [ x] I have added tests to cover my changes
• [ x] All new and existing tests passed

[jeanlego]

this already looks much better! thanks for this! good job!