Bugfix/LS24004504/Fix inStatementDataDefinition by using API directive

[davidepalladino-apuliasoft]

Description

This work concern /API directive. Is not related to vanilla RPGLE; is a feature of Jariko. For more information about this directive, read this documentation.

Technical notes

The goal of this PR is to solve Cannot find searched value for InStatementDataDefinition name=FOO when FOO is declared as D spec on main program and inline from a program imported with API directive, like this example.

Main program

     D FOO             S             10
     C                   EXSR      SUB_R
      /API QILEGEN,PROGRAM_API

Program imported

     ...
     C     SUB_R         BEGSR
     C                   IF        FOO=''
     ...
     C                   ENDIF
     C                   MOVEL     'FOO'           FOO
     ...
     C                   CALL      'MYPGM'
     C                   PARM                    FOO             10
     ...
     C                   ENDSR

To achieve this goal, thanks of suggestion of @dom-apuliasoft to investigate equals of DataDefinition, I have implemented the missed equals and hashCode methods for InStatementDataDefinition. These are extremely necessary for access to LinkedHashMap's entry: precisely, for getLocal where the searched ('data') is a InStatementDataDefinition but the founded is a DataDefinition.

Related to #LS24004504

Checklist:

• If this feature involves RPGLE fixes or improvements, they are well-described in the summary.
• There are tests for this feature.
• RPGLE code used for tests is easily understandable and includes comments that clarify the purpose of this feature.
• The code follows Kotlin conventions (run ./gradlew ktlintCheck).
• The code passes all tests (run ./gradlew check).
• Relevant documentation is included in the docs directory.

[lanarimarco]

Very elegant solution