Compiler bug

[Sija]

class Foo(K, V)
  Q = V | Array(Q) | Set(Q) | Hash(K, Q)
end

class Bar < Foo(String, Int32)
end

pp Bar::Q

Above code fails with compiler exception:

Module validation failed: inlinable function call in a function with debug info must have a !dbg location
  call void @"*raise<String>:NoReturn"(%String* bitcast ({ i32, i32, i32, [151 x i8] }* @"'can't execute `Pret...'" to %String*))

0x108dca983: *raise<String>:NoReturn at ??
0x109bf9d6a: *Crystal::CodeGenVisitor#finish:Nil at ??
0x109b4454d: *Crystal::Compiler#codegen<Crystal::Program, Crystal::ASTNode+, Array(Crystal::Compiler::Source), String>:Nil at ??
0x10a4125c5: *Crystal::Command#run_command<Bool>:Nil at ??
0x108e24493: *Crystal::Command#run:(Bool | Crystal::Compiler::Result | IO::FileDescriptor | Nil) at ??
0x108df1077: main at ??

Possibly related to #2665.