Fixed compiler plugin tests for java 11

Author: Jolanrensen

plugins/kotlin-dataframe/testData/box/toDataFrame.fir.ir.txt

@@ -259,10 +259,6 @@ FILE fqName:<root> fileName:/toDataFrame.kt
         public final fun compareTo (other: E of kotlin.Enum): kotlin.Int declared in kotlin.Enum
       $this: VALUE_PARAMETER name:<this> type:kotlin.Enum<<root>.Switch>
       VALUE_PARAMETER name:other index:0 type:<root>.Switch
-    FUN FAKE_OVERRIDE name:describeConstable visibility:public modality:FINAL <> ($this:kotlin.Enum<<root>.Switch>) returnType:@[FlexibleNullability] java.util.Optional<@[FlexibleNullability] java.lang.Enum.EnumDesc<@[FlexibleNullability] <root>.Switch?>?>? [fake_override]
-      overridden:
-        public final fun describeConstable (): @[FlexibleNullability] java.util.Optional<@[FlexibleNullability] java.lang.Enum.EnumDesc<@[FlexibleNullability] E of kotlin.Enum?>?>? declared in kotlin.Enum
-      $this: VALUE_PARAMETER name:<this> type:kotlin.Enum<<root>.Switch>
     FUN FAKE_OVERRIDE name:equals visibility:public modality:FINAL <> ($this:kotlin.Enum<<root>.Switch>, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override,operator]
       overridden:
         public final fun equals (other: kotlin.Any?): kotlin.Boolean declared in kotlin.Enum

plugins/kotlin-dataframe/testData/box/toDataFrame_dsl.fir.ir.txt

@@ -321,10 +321,6 @@ FILE fqName:<root> fileName:/toDataFrame_dsl.kt
         public final fun compareTo (other: E of kotlin.Enum): kotlin.Int declared in kotlin.Enum
       $this: VALUE_PARAMETER name:<this> type:kotlin.Enum<<root>.Switch>
       VALUE_PARAMETER name:other index:0 type:<root>.Switch
-    FUN FAKE_OVERRIDE name:describeConstable visibility:public modality:FINAL <> ($this:kotlin.Enum<<root>.Switch>) returnType:@[FlexibleNullability] java.util.Optional<@[FlexibleNullability] java.lang.Enum.EnumDesc<@[FlexibleNullability] <root>.Switch?>?>? [fake_override]
-      overridden:
-        public final fun describeConstable (): @[FlexibleNullability] java.util.Optional<@[FlexibleNullability] java.lang.Enum.EnumDesc<@[FlexibleNullability] E of kotlin.Enum?>?>? declared in kotlin.Enum
-      $this: VALUE_PARAMETER name:<this> type:kotlin.Enum<<root>.Switch>
     FUN FAKE_OVERRIDE name:equals visibility:public modality:FINAL <> ($this:kotlin.Enum<<root>.Switch>, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override,operator]
       overridden:
         public final fun equals (other: kotlin.Any?): kotlin.Boolean declared in kotlin.Enum