Add new buildpath_in_binaries_generated_by_d_compiler_gdc toolchain issue.

issues.yml

@@ -1264,6 +1264,10 @@ timestamps_in_output_generated_by_txt2tags:
 random_order_in_documentation_generated_by_naturaldocs:
   description: |
     non-determinstic ordering of stubs, etc.
+buildpath_in_binaries_generated_by_d_compiler_gdc:
+  description: |
+    Binaries generated by the D compiler can encode the buildpath, possibly due
+    to assertions.
 randomness_in_binaries_generated_by_d_compiler_gdc:
   description: |
     Binaries generated by the D compiler seem to have some kind of random