FIR IDE: null out for erroneous PsiType conversion

analysis/symbol-light-classes/src/org/jetbrains/kotlin/light/classes/symbol/fields/FirLightFieldEnumEntry.kt

@@ -67,6 +67,7 @@ internal class FirLightFieldForEnumEntry(
     private val _type: PsiType by lazyPub {
         analyzeWithSymbolAsContext(enumEntrySymbol) {
             enumEntrySymbol.annotatedType.type.asPsiType(this@FirLightFieldForEnumEntry)
+                ?: this@FirLightFieldForEnumEntry.nonExistentType()
         }
     }
 
@@ -87,4 +88,4 @@ internal class FirLightFieldForEnumEntry(
     override fun equals(other: Any?): Boolean =
         other is FirLightFieldForEnumEntry &&
                 enumEntrySymbol == other.enumEntrySymbol
-}
+}

analysis/symbol-light-classes/src/org/jetbrains/kotlin/light/classes/symbol/fields/FirLightFieldForObjectSymbol.kt

@@ -41,6 +41,7 @@ internal class FirLightFieldForObjectSymbol(
     private val _type: PsiType by lazyPub {
         analyzeWithSymbolAsContext(objectSymbol) {
             objectSymbol.buildSelfClassType().asPsiType(this@FirLightFieldForObjectSymbol)
+                ?: this@FirLightFieldForObjectSymbol.nonExistentType()
         }
     }
 
@@ -64,4 +65,4 @@ internal class FirLightFieldForObjectSymbol(
     override fun hashCode(): Int = kotlinOrigin.hashCode()
 
     override fun isValid(): Boolean = super.isValid() && objectSymbol.isValid()
-}
+}

analysis/symbol-light-classes/src/org/jetbrains/kotlin/light/classes/symbol/fields/FirLightFieldForPropertySymbol.kt

@@ -30,6 +30,7 @@ internal class FirLightFieldForPropertySymbol(
     private val _returnedType: PsiType by lazyPub {
         analyzeWithSymbolAsContext(propertySymbol) {
             propertySymbol.annotatedType.type.asPsiType(this@FirLightFieldForPropertySymbol)
+                ?: this@FirLightFieldForPropertySymbol.nonExistentType()
         }
     }
 
@@ -114,4 +115,4 @@ internal class FirLightFieldForPropertySymbol(
     override fun hashCode(): Int = kotlinOrigin.hashCode()
 
     override fun isValid(): Boolean = super.isValid() && propertySymbol.isValid()
-}
+}

analysis/symbol-light-classes/src/org/jetbrains/kotlin/light/classes/symbol/lightClassUtils.kt

@@ -6,7 +6,9 @@
 package org.jetbrains.kotlin.light.classes.symbol
 
 import com.intellij.openapi.project.Project
+import com.intellij.psi.JavaPsiFacade
 import com.intellij.psi.PsiElement
+import com.intellij.psi.PsiType
 import org.jetbrains.kotlin.idea.frontend.api.InvalidWayOfUsingAnalysisSession
 import org.jetbrains.kotlin.idea.frontend.api.KtAnalysisSession
 import org.jetbrains.kotlin.idea.frontend.api.KtAnalysisSessionProvider
@@ -31,4 +33,7 @@ internal inline fun <R> Project.analyzeWithSymbolAsContext(
     action: KtAnalysisSession.() -> R
 ): R {
     return KtAnalysisSessionProvider.getInstance(this).analyzeWithSymbolAsContext(contextSymbol, action)
-}
+}
+
+internal fun PsiElement.nonExistentType(): PsiType =
+    JavaPsiFacade.getElementFactory(project).createTypeFromText("error.NonExistentClass", this)

analysis/symbol-light-classes/src/org/jetbrains/kotlin/light/classes/symbol/methods/FirLightAccessorMethodForSymbol.kt

@@ -149,14 +149,15 @@ internal class FirLightAccessorMethodForSymbol(
 
     override fun getNameIdentifier(): PsiIdentifier = _identifier
 
-    private val _returnedType: PsiType? by lazyPub {
+    private val _returnedType: PsiType by lazyPub {
         if (!isGetter) return@lazyPub PsiType.VOID
         analyzeWithSymbolAsContext(containingPropertySymbol) {
             containingPropertySymbol.annotatedType.type.asPsiType(this@FirLightAccessorMethodForSymbol)
+                ?: this@FirLightAccessorMethodForSymbol.nonExistentType()
         }
     }
 
-    override fun getReturnType(): PsiType? = _returnedType
+    override fun getReturnType(): PsiType = _returnedType
 
     override fun equals(other: Any?): Boolean =
         this === other ||

analysis/symbol-light-classes/src/org/jetbrains/kotlin/light/classes/symbol/methods/FirLightSimpleMethodForSymbol.kt

@@ -131,6 +131,7 @@ internal class FirLightSimpleMethodForSymbol(
         if (isVoidReturnType) return@lazyPub PsiType.VOID
         analyzeWithSymbolAsContext(functionSymbol) {
             functionSymbol.annotatedType.type.asPsiType(this@FirLightSimpleMethodForSymbol)
+                ?: this@FirLightSimpleMethodForSymbol.nonExistentType()
         }
     }
 
@@ -142,4 +143,4 @@ internal class FirLightSimpleMethodForSymbol(
     override fun hashCode(): Int = functionSymbol.hashCode()
 
     override fun isValid(): Boolean = super.isValid() && functionSymbol.isValid()
-}
+}

analysis/symbol-light-classes/src/org/jetbrains/kotlin/light/classes/symbol/parameters/FirLightParameterBaseForSymbol.kt

@@ -48,6 +48,7 @@ internal abstract class FirLightParameterBaseForSymbol(
     private val _type by lazyPub {
         val convertedType = analyzeWithSymbolAsContext(parameterSymbol) {
             parameterSymbol.annotatedType.type.asPsiType(this@FirLightParameterBaseForSymbol)
+                ?: this@FirLightParameterBaseForSymbol.nonExistentType()
         }
         if (convertedType is PsiArrayType && parameterSymbol.isVararg) {
             PsiEllipsisType(convertedType.componentType, convertedType.annotationProvider)
@@ -59,4 +60,4 @@ internal abstract class FirLightParameterBaseForSymbol(
     abstract override fun equals(other: Any?): Boolean
 
     abstract override fun hashCode(): Int
-}
+}

analysis/symbol-light-classes/src/org/jetbrains/kotlin/light/classes/symbol/parameters/FirLightParameterForReceiver.kt

@@ -72,6 +72,7 @@ internal class FirLightParameterForReceiver private constructor(
     private val _type: PsiType by lazyPub {
         analyzeWithSymbolAsContext(context) {
             receiverTypeAndAnnotations.type.asPsiType(this@FirLightParameterForReceiver)
+                ?: this@FirLightParameterForReceiver.nonExistentType()
         }
     }