Add public extension methods that expose language specific conversion information for ICoalesceOperation

Description

Contributor guide

Tech stack

csharp

Domain

toolingdeveloper experience

Issue type

feature

DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.

4

Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.

1-3 hours

Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.

stale

ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.

unclear

Prerequisites

C# knowledgeRoslyn codebase familiarityUnderstanding of ICoalesceOperation

Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.

20

Research direction

The issue references `BaseCoalesceExpression.ConvertibleValueConversion` as an example. A contributor should examine that member in the Roslyn source to understand the pattern for exposing language specific conversion information. Then, they need to propose and implement public extension methods for `ICoalesceOperation` following that pattern. No further discussion is present; the scope is ambiguous, so reaching out to maintainers for clarification may be necessary.