8338766: [lw5] remove option enableNullRestrictedTypes and make null-restricted types a preview feature

[vicente-romero-oracle]

this fix is removing internal option enableNullRestrictedTypes and making null restricted types for value classes a preview feature

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Progress

• Change must not contain extraneous whitespace

Issue

• JDK-8338766: [lw5] remove option enableNullRestrictedTypes and make null-restricted types a preview feature (Bug - P4)

Reviewing

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[openjdk]

@vicente-romero-oracle This change now passes all automated pre-integration checks.

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After integration, the commit message for the final commit will be:

8338766: [lw5] remove option enableNullRestrictedTypes and make null-restricted types a preview feature

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At the time when this comment was updated there had been 1 new commit pushed to the lw5 branch:

• 2b30981: API classes supporting RuntimeTypes and ArrayCreation bootstraps

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[mlbridge]

Webrevs

• 01: Full - Incremental (37285f1a)
• 00: Full (d3f1737e)

[vicente-romero-oracle]

/integrate

[openjdk]

Going to push as commit 0b42d33.
Since your change was applied there has been 1 commit pushed to the lw5 branch:

• 2b30981: API classes supporting RuntimeTypes and ArrayCreation bootstraps

Your commit was automatically rebased without conflicts.

[openjdk]

@vicente-romero-oracle Pushed as commit 0b42d33.

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