Fix type mapping for parameter of Collection<Int>::remove override

In the case the single parameter of override has `Integer` type instead
of `int` type (while in common case it would be just `int`)

See the comment inside forceSingleValueParameterBoxing for clarification

 #KT-19892 Fixed

compiler/backend/src/org/jetbrains/kotlin/codegen/ExpressionCodegen.java

@@ -61,6 +61,7 @@ import org.jetbrains.kotlin.diagnostics.Errors;
 import org.jetbrains.kotlin.lexer.KtTokens;
 import org.jetbrains.kotlin.load.java.JvmAbi;
 import org.jetbrains.kotlin.load.java.sam.SamConstructorDescriptor;
+import org.jetbrains.kotlin.load.kotlin.MethodSignatureMappingKt;
 import org.jetbrains.kotlin.load.kotlin.TypeSignatureMappingKt;
 import org.jetbrains.kotlin.name.Name;
 import org.jetbrains.kotlin.psi.*;
@@ -1284,8 +1285,19 @@ public class ExpressionCodegen extends KtVisitor<StackValue, StackValue> impleme
         KotlinType varType = isDelegatedLocalVariable(variableDescriptor)
                              ? JvmCodegenUtil.getPropertyDelegateType((VariableDescriptorWithAccessors) variableDescriptor, bindingContext)
                              : variableDescriptor.getType();
-        //noinspection ConstantConditions
-        return asmType(varType);
+
+        if (variableDescriptor instanceof ValueParameterDescriptor &&
+                MethodSignatureMappingKt.forceSingleValueParameterBoxing(
+                        (CallableDescriptor) variableDescriptor.getContainingDeclaration()
+                )
+        ) {
+            //noinspection ConstantConditions
+            return asmType(TypeUtils.makeNullable(varType));
+        }
+        else {
+            //noinspection ConstantConditions
+            return asmType(varType);
+        }
     }
 
     private void putDescriptorIntoFrameMap(@NotNull KtElement statement) {