[Issue 23658] New: .di generation of variables should turn them into declarations

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=23658

          Issue ID: 23658
           Summary: .di generation of variables should turn them into
                    declarations
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: P1
         Component: dmd
          Assignee: nobody at puremagic.com
          Reporter: bugzilla at digitalmars.com

Currently, generating the .di file for:

 int a = 5;
 int b;
 extern int c;
 void foo() { }
 void bar();
 extern void abc();

results in:

 // D import file generated from 'test4.d'
 int a = 5;
 int b;
 extern int c;
 void foo();
 void bar();
 extern void abc();

Note that foo() was turned from a declaration into a definition, but a and b
were not. They should be. This should make .di header generation much better
for DLLs.

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