anchor.diff:             #:tail-call-p
              #:add-incoming #:count-incoming #:incoming-value #:incoming-block
              ;; instruction builders
  -           #:builder #:position-builder #:position-builder-before
  +           #:builder #:make-builder #:position-builder #:position-builder-before
              #:position-builder-at-end #:insertion-block
              #:clear-insertion-position #:insert-into-builder #:dispose-builder
              #:build-ret #:build-br #:build-cond-br #:build-switch #:build-invoke
  
positive.code:            ;; modules
             #:context #:global-context #:context-dispose
             #:module
             #:dispose-module
             #:data-layout
             #:target
  
negative.code: (defpackage llvm
      (:documentation
       "In general, names are from the C interface (see include/llvm-c), translated
      as follows:
  
    • “LLVM” prefix is dropped
  