FIR IDE: Add KtFunctionLikeSymbol.hasStableParameterNames.

idea/idea-frontend-api/src/org/jetbrains/kotlin/idea/frontend/api/calls/ktCallUtils.kt

@@ -12,6 +12,11 @@ public fun KtCallTarget.getSuccessCallSymbolOrNull(): KtFunctionLikeSymbol? = wh
     is KtErrorCallTarget -> null
 }
 
+public fun KtCallTarget.getSingleCandidateSymbolOrNull(): KtFunctionLikeSymbol? = when (this) {
+    is KtSuccessCallTarget -> symbol
+    is KtErrorCallTarget -> candidates.singleOrNull()
+}
+
 public inline fun <reified S : KtFunctionLikeSymbol> KtCall.isSuccessCallOf(predicate: (S) -> Boolean): Boolean {
     if (this !is KtFunctionCall) return false
     val symbol = targetFunction.getSuccessCallSymbolOrNull() ?: return false

idea/idea-frontend-api/src/org/jetbrains/kotlin/idea/frontend/api/symbols/KtFunctionLikeSymbol.kt

@@ -14,6 +14,13 @@ import org.jetbrains.kotlin.name.FqName
 public abstract class KtFunctionLikeSymbol : KtCallableSymbol(), KtSymbolWithKind {
     public abstract val valueParameters: List<KtValueParameterSymbol>
 
+    /**
+     * Kotlin functions always have stable parameter names that can be reliably used when calling them with named arguments.
+     * Functions loaded from platform definitions (e.g. Java binaries or JS) may have unstable parameter names that vary from
+     * one platform installation to another. These names can not be used reliably for calls with named arguments.
+     */
+    public abstract val hasStableParameterNames: Boolean
+
     abstract override fun createPointer(): KtSymbolPointer<KtFunctionLikeSymbol>
 }
 

idea/idea-frontend-fir/src/org/jetbrains/kotlin/idea/frontend/api/fir/symbols/KtFirAnonymousFunctionSymbol.kt

@@ -8,6 +8,7 @@ package org.jetbrains.kotlin.idea.frontend.api.fir.symbols
 import com.intellij.psi.PsiElement
 import org.jetbrains.kotlin.fir.declarations.FirAnonymousFunction
 import org.jetbrains.kotlin.fir.declarations.FirResolvePhase
+import org.jetbrains.kotlin.fir.resolve.getHasStableParameterNames
 import org.jetbrains.kotlin.idea.fir.findPsi
 import org.jetbrains.kotlin.idea.fir.low.level.api.api.FirModuleResolveState
 import org.jetbrains.kotlin.idea.frontend.api.fir.KtSymbolByFirBuilder
@@ -41,6 +42,8 @@ internal class KtFirAnonymousFunctionSymbol(
         }
     }
 
+    override val hasStableParameterNames: Boolean = firRef.withFir { it.getHasStableParameterNames(it.moduleData.session) }
+
     override val isExtension: Boolean get() = firRef.withFir { it.receiverTypeRef != null }
     override val receiverType: KtTypeAndAnnotations? by cached {
         firRef.receiverTypeAndAnnotations(builder)

idea/idea-frontend-fir/src/org/jetbrains/kotlin/idea/frontend/api/fir/symbols/KtFirConstructorSymbol.kt

@@ -10,6 +10,7 @@ import org.jetbrains.kotlin.descriptors.Visibility
 import org.jetbrains.kotlin.fir.containingClass
 import org.jetbrains.kotlin.fir.declarations.FirConstructor
 import org.jetbrains.kotlin.fir.declarations.FirResolvePhase
+import org.jetbrains.kotlin.fir.resolve.getHasStableParameterNames
 import org.jetbrains.kotlin.idea.fir.findPsi
 import org.jetbrains.kotlin.idea.fir.low.level.api.api.FirModuleResolveState
 import org.jetbrains.kotlin.idea.frontend.api.fir.KtSymbolByFirBuilder
@@ -54,6 +55,8 @@ internal class KtFirConstructorSymbol(
         }
     }
 
+    override val hasStableParameterNames: Boolean = firRef.withFir { it.getHasStableParameterNames(it.moduleData.session) }
+
     override val visibility: Visibility get() = getVisibility()
 
     override val annotations: List<KtAnnotationCall> by cached { firRef.toAnnotationsList() }

idea/idea-frontend-fir/src/org/jetbrains/kotlin/idea/frontend/api/fir/symbols/KtFirFunctionSymbol.kt

@@ -11,6 +11,7 @@ import org.jetbrains.kotlin.descriptors.Visibility
 import org.jetbrains.kotlin.fir.containingClass
 import org.jetbrains.kotlin.fir.declarations.*
 import org.jetbrains.kotlin.fir.declarations.utils.*
+import org.jetbrains.kotlin.fir.resolve.getHasStableParameterNames
 import org.jetbrains.kotlin.idea.fir.findPsi
 import org.jetbrains.kotlin.idea.fir.low.level.api.api.FirModuleResolveState
 import org.jetbrains.kotlin.idea.frontend.api.fir.KtSymbolByFirBuilder
@@ -63,6 +64,8 @@ internal class KtFirFunctionSymbol(
         }
     }
 
+    override val hasStableParameterNames: Boolean = firRef.withFir { it.getHasStableParameterNames(it.moduleData.session) }
+
     override val annotations: List<KtAnnotationCall> by cached { firRef.toAnnotationsList() }
     override fun containsAnnotation(classId: ClassId): Boolean = firRef.containsAnnotation(classId)
     override val annotationClassIds: Collection<ClassId> by cached { firRef.getAnnotationClassIds() }