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Document -Xrender-internal-diagnostic-names #5092

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7 changes: 7 additions & 0 deletions docs/topics/compiler-reference.md
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Expand Up @@ -176,6 +176,11 @@ Treat all warnings as compilation errors.
Enable [additional declaration, expression, and type compiler checks](whatsnew21.md#extra-compiler-checks) that
emit warnings if true.

#### -Xrender-internal-diagnostic-names
<primary-label ref="experimental-general"/>

Includes diagnostic names when a warning is printed. Useful for discovering `DIAGNOSTIC_NAME` for [`-Xwarning-level``](#xwarning-level).

#### -Xwarning-level
<primary-label ref="experimental-general"/>

Expand All @@ -199,6 +204,8 @@ You can adjust warning reporting in your project by combining module-wide rules

If you have many warnings to exclude from the general rules, you can list them in a separate file using [`@argfile`](#argfile).

`DIAGNOSTIC_NAME`s can be discovered via [`-Xrender-internal-diagnostic-names`](#xrender-internal-diagnostic-names).

### -Xdata-flow-based-exhaustiveness
<primary-label ref="experimental-general"/>

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