Don't copy default value parameters for fake overrides

compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/overrides/FakeOverrideCopier.kt

@@ -5,14 +5,11 @@
 
 package org.jetbrains.kotlin.backend.common.overrides
 
-import org.jetbrains.kotlin.ir.declarations.IrDeclarationOrigin
-import org.jetbrains.kotlin.ir.declarations.IrFunction
-import org.jetbrains.kotlin.ir.declarations.IrProperty
-import org.jetbrains.kotlin.ir.declarations.IrSimpleFunction
+import org.jetbrains.kotlin.ir.declarations.*
 import org.jetbrains.kotlin.ir.util.*
 
 class FakeOverrideCopier(
-    symbolRemapper: SymbolRemapper,
+    private val symbolRemapper: SymbolRemapper,
     private val typeRemapper: TypeRemapper,
     private val symbolRenamer: SymbolRenamer
 ) : DeepCopyIrTreeWithSymbols(symbolRemapper, typeRemapper, symbolRenamer) {
@@ -87,4 +84,20 @@ class FakeOverrideCopier(
             this.getter = declaration.getter?.transform()
             this.setter = declaration.setter?.transform()
         }
+
+    override fun visitValueParameter(declaration: IrValueParameter): IrValueParameter =
+        declaration.factory.createValueParameter(
+            declaration.startOffset, declaration.endOffset,
+            mapDeclarationOrigin(declaration.origin),
+            symbolRemapper.getDeclaredValueParameter(declaration.symbol),
+            symbolRenamer.getValueParameterName(declaration.symbol),
+            declaration.index,
+            declaration.type.remapType(),
+            declaration.varargElementType?.remapType(),
+            declaration.isCrossinline,
+            declaration.isNoinline
+        ).apply {
+            transformAnnotations(declaration)
+            // Don't set the default value for fake overrides.
+        }
 }