d: Fix gdc.dg/pr92216.d FAILs on 32-bit targets

The symbol being scanned for only matched on 64-bit targets.

gcc/testsuite/ChangeLog:

	PR d/94321
	* gdc.dg/pr92216.d: Update to work on targets with 16 or 32-bit
	pointers.

gcc/testsuite/ChangeLog

+2020-04-01  Iain Buclaw  <ibuclaw@gdcproject.org>
+
+	PR d/94321
+	* gdc.dg/pr92216.d: Update to work on targets with 16 or 32-bit
+	pointers.
+
 2020-04-01  David Malcolm  <dmalcolm@redhat.com>
 
 	PR analyzer/94378

gcc/testsuite/gdc.dg/pr92216.d

 // https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92216
 // { dg-options "-I $srcdir/gdc.dg" }
 // { dg-do compile }
-// { dg-final { scan-assembler "_DT16_D7imports7pr922161B8__mixin24getSMFZPv\[: \t\n\]" } }
-// { dg-final { scan-assembler-not "(.globl|.global)\[ 	\]+_DT16_D7imports7pr922161B8__mixin24getSMFZPv" } }
+// { dg-final { scan-assembler "_DT(4|8|16)_D7imports7pr922161B8__mixin24getSMFZPv\[: \t\n\]" } }
+// { dg-final { scan-assembler-not "(.globl|.global)\[ 	\]+_DT(4|8|16)_D7imports7pr922161B8__mixin24getSMFZPv" } }
 module pr92216;
 
 private import imports.pr92216;