Add original KotlinType to rendered IrErrorType

Also improve an error message in `IrType.erasedUpperBound`, which seems
like a frequent first place where the JVM IR backend crashes in case an
error type has made it past psi2ir.

This will help in diagnosing problems such as KT-45016.

compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/ir/IrUtils.kt

@@ -113,7 +113,7 @@ val IrType.erasedUpperBound: IrClass
     get() = when (val classifier = classifierOrNull) {
         is IrClassSymbol -> classifier.owner
         is IrTypeParameterSymbol -> classifier.owner.erasedUpperBound
-        else -> throw IllegalStateException()
+        else -> error(render())
     }
 
 /**

compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/util/RenderIrElement.kt

@@ -18,6 +18,7 @@ import org.jetbrains.kotlin.ir.symbols.IrTypeAliasSymbol
 import org.jetbrains.kotlin.ir.symbols.IrVariableSymbol
 import org.jetbrains.kotlin.ir.types.*
 import org.jetbrains.kotlin.ir.types.impl.ReturnTypeIsNotInitializedException
+import org.jetbrains.kotlin.ir.types.impl.originalKotlinType
 import org.jetbrains.kotlin.ir.visitors.IrElementVisitor
 import org.jetbrains.kotlin.renderer.DescriptorRenderer
 import org.jetbrains.kotlin.types.Variance
@@ -103,7 +104,7 @@ class RenderIrElementVisitor(private val normalizeNames: Boolean = false) : IrEl
         when (this) {
             is IrDynamicType -> "dynamic"
 
-            is IrErrorType -> "IrErrorType"
+            is IrErrorType -> "IrErrorType($originalKotlinType)"
 
             is IrSimpleType -> buildTrimEnd {
                 append(classifier.renderClassifierFqn())