FIR IDE: Add building completion context for properties

compiler/fir/tree/gen/org/jetbrains/kotlin/fir/declarations/builder/FirPropertyBuilder.kt

@@ -90,3 +90,31 @@ inline fun buildProperty(init: FirPropertyBuilder.() -> Unit): FirProperty {
     }
     return FirPropertyBuilder().apply(init).build()
 }
+
+@OptIn(ExperimentalContracts::class)
+inline fun buildPropertyCopy(original: FirProperty, init: FirPropertyBuilder.() -> Unit): FirProperty {
+    contract {
+        callsInPlace(init, kotlin.contracts.InvocationKind.EXACTLY_ONCE)
+    }
+    val copyBuilder = FirPropertyBuilder()
+    copyBuilder.source = original.source
+    copyBuilder.session = original.session
+    copyBuilder.resolvePhase = original.resolvePhase
+    copyBuilder.origin = original.origin
+    copyBuilder.returnTypeRef = original.returnTypeRef
+    copyBuilder.receiverTypeRef = original.receiverTypeRef
+    copyBuilder.name = original.name
+    copyBuilder.initializer = original.initializer
+    copyBuilder.delegate = original.delegate
+    copyBuilder.delegateFieldSymbol = original.delegateFieldSymbol
+    copyBuilder.isVar = original.isVar
+    copyBuilder.getter = original.getter
+    copyBuilder.setter = original.setter
+    copyBuilder.annotations.addAll(original.annotations)
+    copyBuilder.typeParameters.addAll(original.typeParameters)
+    copyBuilder.containerSource = original.containerSource
+    copyBuilder.symbol = original.symbol
+    copyBuilder.isLocal = original.isLocal
+    copyBuilder.status = original.status
+    return copyBuilder.apply(init).build()
+}

compiler/fir/tree/tree-generator/src/org/jetbrains/kotlin/fir/tree/generator/BuilderConfigurator.kt

@@ -172,6 +172,7 @@ object BuilderConfigurator : AbstractBuilderConfigurator<FirTreeBuilder>(FirTree
             parents += typeParametersOwnerBuilder
             defaultNull("getter", "setter", "containerSource", "delegateFieldSymbol")
             default("resolvePhase", "FirResolvePhase.RAW_FIR")
+            withCopy()
         }
 
         builder(typeOperatorCall) {