Treat errors from Frgaal compiler as errors, not as warnings

[Akirathan]

Errors reported from Frgaal compiler are, parsed by sbt as warnings rather than errors. For example:

[info] compiling 1 Java source to /home/pavel/dev/enso/engine/runtime/target/scala-2.13/test-classes ...
[warn] Unexpected javac output: warning: The following options were not recognized by any processor: '[truffle.dsl.SuppressWarnings]'
[warn] /home/pavel/dev/enso/engine/runtime/src/test/java/org/enso/interpreter/test/caches/ModuleCacheTest.java:50: error: serialize(EnsoContext,CachedModule) has protected access in ModuleCache
[warn]     byte[] arr = module.getCache().serialize(ensoCtx, cm);
[warn]                                   ^
[warn] /home/pavel/dev/enso/engine/runtime/src/test/java/org/enso/interpreter/test/caches/ModuleCacheTest.java:53: error: deserialize(EnsoContext,byte[],Metadata,TruffleLogger) has protected access in ModuleCache
[warn]     var cachedIr = module.getCache().deserialize(ensoCtx, arr, meta, null);
[warn]                                     ^
[warn] /home/pavel/dev/enso/engine/runtime/src/test/java/org/enso/interpreter/test/caches/ModuleCacheTest.java:76: error: serialize(EnsoContext,CachedModule) has protected access in ModuleCache
[warn]     byte[] arr = module.getCache().serialize(ensoCtx, cm);
[warn]                                   ^
[warn] /home/pavel/dev/enso/engine/runtime/src/test/java/org/enso/interpreter/test/caches/ModuleCacheTest.java:79: error: deserialize(EnsoContext,byte[],Metadata,TruffleLogger) has protected access in ModuleCache
[warn]     var cachedIr = module.getCache().deserialize(ensoCtx, arr, meta, null);
[warn]                                     ^
[warn] 4 errors
[warn] 1 warning.
[warn] frgaal exited with exit code 1
[error] (Test / compileIncremental) javac returned non-zero exit code
[error] Total time: 3 s, completed Dec 11, 2023, 7:00:16 PM

This can lead to some confusions.

Let's modify javac output processor in FrgaalCompiler.scala such that errors are correctly recognized.

[enso-bot]

Jaroslav Tulach reports a new STANDUP for yesterday (2024-05-02):

Progress: - fix for #8513 as #9834

• analyzing slowness & review of ydoc server: Run ydoc-server with GraalVM #9528 (review)
• discussion: https://discord.com/channels/@me/948519891961544714/1235504797629812768
• Main.java merged: Rewriting org.enso.runner.Main to Java #9810
• discussing Enso's Oracle Java SE Subscription: Random CI failure on Oracle GraalVM: jdk.internal.vm.TranslatedException: Error decoding exception #9457 (comment)
• WithWarnings to be isException: Pretending WithWarnings isException #9840
• meeting & standup It should be finished by 2024-05-03.

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[enso-bot]

Jaroslav Tulach reports a new STANDUP for yesterday (2024-05-03):

Progress: - WithWarnings and MetaIsATest: 7489bec

• fixing WarningsTest: 64e1c11
• more of WithWarnings tests & documentation
• Rust parser changes: Error on indents #9855 It should be finished by 2024-05-03.