[FIR] Do not throw exception on unexpected FIR for constants

^KTIJ-23263 fixed

Merge-request: KT-MR-10699
Merged-by: Egor Kulikov <Egor.Kulikov@jetbrains.com>

analysis/analysis-api-fir/src/org/jetbrains/kotlin/analysis/api/fir/KtSymbolByFirBuilder.kt

@@ -264,8 +264,8 @@ internal class KtSymbolByFirBuilder constructor(
                 is FirFieldSymbol -> buildFieldSymbol(firSymbol)
                 is FirEnumEntrySymbol -> buildEnumEntrySymbol(firSymbol) // TODO enum entry should not be callable
                 is FirBackingFieldSymbol -> buildBackingFieldSymbol(firSymbol)
+                is FirErrorPropertySymbol -> buildErrorVariableSymbol(firSymbol)
 
-                is FirErrorPropertySymbol -> throwUnexpectedElementError(firSymbol)
                 is FirDelegateFieldSymbol -> throwUnexpectedElementError(firSymbol)
             }
         }

analysis/analysis-api-fir/src/org/jetbrains/kotlin/analysis/api/fir/components/KtFirCompileTimeConstantProvider.kt

@@ -66,10 +66,7 @@ internal class KtFirCompileTimeConstantProvider(
             // ```
             // `false` does not have a corresponding elements on the FIR side and hence the containing `FirWhenBranch` is returned. In this
             // case, we simply report null since FIR does not know about it.
-            fir is FirWhenBranch -> null
-            fir is FirVariableAssignment && fir.source?.kind == KtFakeSourceElementKind.DesugaredIncrementOrDecrement -> null
-            fir is FirTypeRef -> null
-            else -> throwUnexpectedFirElementError(fir, sourcePsi)
+            else -> null
         }
     }