https://issues.dlang.org/show_bug.cgi?id=19499

          Issue ID: 19499
           Summary: __c_long_double brake template specialization
           Product: D
           Version: D2
          Hardware: All
                OS: Windows
            Status: NEW
          Severity: regression
          Priority: P1
         Component: dmd
          Assignee: nobody@puremagic.com
          Reporter: ilyayaroshenko@gmail.com

// Mircrosoft C Runtime
import core.stdc.config;
enum A(T : double) = true;
enum A(T : __c_long_double) = false;
pragma(msg, A!double); // Error in 2.083, compiles in 2.082

The pattern is used in Mir for integration with Python.

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