Closes #6015

• Adds an export to the record dot preprocessor module for the expression preprocessor and uses it in the DAML REPL parser. We're parsing individual statements in the DAML REPL so we cannot apply the full module preprocessor.
• Adds a regression test for record dot syntax entered into the DAML REPL.

Pull Request Checklist

• Read and understand the contribution guidelines
• Include appropriate tests
• Set a descriptive title and thorough description
• Add a reference to the issue this PR will solve, if appropriate
• Include changelog additions in one or more commit message bodies between the CHANGELOG_BEGIN and CHANGELOG_END tags
• Normal production system change, include purpose of change in description

NOTE: CI is not automatically run on non-members pull-requests for security
reasons. The reviewer will have to comment with /AzurePipelines run to
trigger the build.