[Bug]: Compilation erros and warnings are not shown in fast-run mode

[NipunaRanasinghe]

Description

The current LS fast-run feature doesn't properly show compilation diagnostics (collected by the JBallerinaBackend), as they are not properly directed to the stderr channel of the fast-run output.

Therefore the fast-run feature needs to be updated to report all the compiler diagnostics and, fail-fast on any compiler errors.

Steps to Reproduce

No response

Affected Version(s)

2201.11.0 and below

OS, DB, other environment details and versions

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Related area

-> Other Area

Related issue(s) (optional)

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Suggested label(s) (optional)

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Suggested assignee(s) (optional)

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[github-actions]

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      - Reason/EngineeringMistake - The issue occurred due to a mistake made in the past.
      - Reason/Regression - The issue has introduced a regression.
      - Reason/MultipleComponentInteraction - Issue occured due to interactions in multiple components.
      - Reason/Complex - Issue occurred due to complex scenario.
      - Reason/Invalid - Issue is invalid.
      - Reason/Other - None of the above cases.