NPE from compiler instead of syntax error on `@anno`

[JaroslavTulach]

Create following program:

@anno
fn = 10

and execute it. The execution crashes with:

Caused by: org.graalvm.polyglot.PolyglotException: java.lang.NullPointerException: Cannot invoke "org.enso.compiler.core.ir.Expression.transformExpressions(scala.PartialFunction)" because "ir" is null
        at org.enso.runtime.compiler/org.enso.compiler.pass.desugar.SectionsToBinOp$.runExpression(SectionsToBinOp.scala:83)
        at org.enso.runtime.compiler/org.enso.compiler.pass.desugar.SectionsToBinOp$.$anonfun$runModule$1(SectionsToBinOp.scala:57)
        at org.enso.runtime.parser/org.enso.compiler.core.ir.Name$GenericAnnotation.mapExpressions(Name.scala:749)
        at org.enso.runtime.parser/org.enso.compiler.core.ir.Name$GenericAnnotation.mapExpressions(Name.scala:681)
        at org.enso.runtime.parser/org.enso.compiler.core.ir.Module.$anonfun$mapExpressions$3(Module.scala:144)
        at scala.library@2.13.11/scala.collection.immutable.List.map(List.scala:246)
        at org.enso.runtime.parser/org.enso.compiler.core.ir.Module.mapExpressions(Module.scala:144)
        at org.enso.runtime.compiler/org.enso.compiler.pass.desugar.SectionsToBinOp$.runModule(SectionsToBinOp.scala:55)
        at org.enso.runtime.compiler/org.enso.compiler.pass.PassManager.$anonfun$runPassesOnModule$2(PassManager.scala:101)

[enso-bot[bot]]

Jaroslav Tulach reports a new STANDUP for yesterday (2024-10-02):

Progress: .

• integrated: https://github.com/enso-org/enso/pull/11224
• polishing EnsoClassPath: https://github.com/enso-org/enso/pull/10714/commits/e9a045666b975d97a17ae48f607d16d06d81f0d0
• note about prefix multiline operator syntax: https://github.com/enso-org/enso/issues/11203
• helping to get StackOverflowError trace: https://discord.com/channels/@me/959434339182067712/1291002411816718366
• fixing Lookup
• Image_Tests: https://github.com/enso-org/enso/pull/10714/commits/e6e5c098c87809aa6b9c774d4c5d3fc22efc7fa7
• got SQL drivers working
• meeting Pavel (mini IR passes)
• meeting James
• libs standup
• retro meeting It should be finished by 2024-10-02.

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