Let's imagine some companies (like Sun Microsystems) making wonderful language (like Java), and provide NO IDEs. We really had tough time during the initial years of Java - just with Borland JBuilder and some other primitive IDEs - until we could get wonderful IDEs like Eclipse followed by IntelliJ-IDEA.

It's widely understood that you're referring to JetBrains' Kotlin. In such case, really industry-famous-IDE support for a 'new language', is some sort of a gift!

Besides, why would a company want to invest in R&D to create a language and just give it for FREE, without any tangible business benefits.

Remember, Sun did so... giving away Java for free. Eventually - under stress - they themselves were sold (and bought by Oracle).

Is that a reference to JetBrains and Kotlin? :-)

Kotlin and C# are two examples that fit the bill. If that's what you're looking for.