Or, for that matter, Nim, which also has a huge amount of Pascal heritage.
Go is a hybrid of Oberon and C (with semantics leaning more towards Oberon and syntax more towards C, but they're both mixed in), and Nim is Modula-3 semantics married to Python syntax (with the best parts of a bunch of other languages thrown in). Both Oberon and Modula-3 are descended from Modula-2, which in turn is descended from Pascal.
Personally, I'm more in the Nim camp, partially because I prefer Modula-3 to Oberon, partially because I prefer Nim's Pythonesque syntax to Go's C/Oberon mashup syntax, and partially because Nim's metaprogramming features are truly beautiful.
I was a bit concerned about the maturity, compiler complexity, available libraries, and so on about Nim. I figured it might be in alpha quality or something given it's so new. So, I was hesitant to try it. I might give it a go sometime soon reading comments like yours.
Btw, do you have experience with its macro system? Any take-it-to-next-level language needs at least good macros and preferably great ones. Top contenders of my recent research are Racket, Julia, and Red. If Nim is more like Modula3/Python & has good macros, then it might be a credible contender due to mainstream programmers being able to pick it up more easily than really weird languages.
I think you meant Pascal?
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However, even Turbo Pascal was more expressive than Go in terms of language features (not taking the GC into account). Delphi even more so, specially if one takes into consideration the VCL and IDE.
But, it would be nice to see someone come up with a System 3 Gadgets library for Go, or an environment like BlackBox Component Builder.
Anyone wanting Pascal/Delphi today should use Lazaurus IDE w/ Free Pascal Compiler. Compatible with Delphi where it mattered, aiming for better in other areas, open-source, and cross-platform. Best use case is a C or C++ replacement that's safer, easy to read, and supports computers with little resources. Go's not there yet on runtime side.