JVM IR: Optimize field initializers in secondary constructors

compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/codegen/ExpressionCodegen.kt

@@ -558,10 +558,9 @@ class ExpressionCodegen(
     override fun visitSetField(expression: IrSetField, data: BlockInfo): PromisedValue {
         val expressionValue = expression.value
         // Do not add redundant field initializers that initialize to default values.
-        val inPrimaryConstructor = irFunction is IrConstructor && irFunction.isPrimary
         val inClassInit = irFunction.origin == JvmLoweredDeclarationOrigin.CLASS_STATIC_INITIALIZER
         val isFieldInitializer = expression.origin == IrStatementOrigin.INITIALIZE_FIELD
-        val skip = (inPrimaryConstructor || inClassInit) && isFieldInitializer && expressionValue is IrConst<*> &&
+        val skip = (irFunction is IrConstructor || inClassInit) && isFieldInitializer && expressionValue is IrConst<*> &&
                 isDefaultValueForType(expression.symbol.owner.type.asmType, expressionValue.value)
         return if (skip) unitValue else super.visitSetField(expression, data)
     }