[IR] Autogenerate IrFunctionImpl

^KT-65773 In Progress

compiler/ir/ir.tree/tree-generator/src/org/jetbrains/kotlin/ir/generator/ImplementationConfigurator.kt

@@ -16,8 +16,11 @@ object ImplementationConfigurator : AbstractIrTreeImplementationConfigurator() {
             isLateinit("body")
         }
 
-        impl(simpleFunction) {
-            implementation.doPrint = false
+        impl(simpleFunction, "IrFunctionImpl") {
+            defaultEmptyList("valueParameters")
+            defaultNull("dispatchReceiverParameter", "extensionReceiverParameter", "body", "correspondingPropertySymbol")
+            default("contextReceiverParametersCount", "0")
+            isLateinit("returnType")
         }
         impl(functionWithLateBinding) {
             implementation.doPrint = false

compiler/ir/ir.tree/tree-generator/src/org/jetbrains/kotlin/ir/generator/IrTree.kt

@@ -555,6 +555,9 @@ object IrTree : AbstractTreeBuilder() {
         parent(attributeContainer)
 
         +symbol(simpleFunctionSymbolType)
+        +listField("overriddenSymbols", simpleFunctionSymbolType, mutability = Var) {
+            skipInIrFactory()
+        }
         +field("isTailrec", boolean)
         +field("isSuspend", boolean)
         +isFakeOverrideField()