Version Used: 7.3

Steps to Reproduce:

1. Attempt to compile the following

public void Foo<T>(T value){

    if (value == default)
}

Expected Behavior: Compile error similar to value == default(T)

public void Foo<T>(T value){

    if (value == default(T)) // <--- compile error as expected
}

Actual Behavior: compiles into a null check for all types including value types and leads to situations where when T is int and value=0, value == default evaluates to false.