compiler.cfg: the id slot of basic-block appears to not be needed

basis/compiler/cfg/cfg.factor

@@ -4,7 +4,6 @@ USING: accessors kernel layouts math namespaces vectors ;
 IN: compiler.cfg
 
 TUPLE: basic-block < identity-tuple
-{ id integer }
     number
     { instructions vector }
     { successors vector }
@@ -13,13 +12,10 @@ number
 
 : <basic-block> ( -- bb )
     basic-block new
-        \ basic-block counter >>id
         V{ } clone >>instructions
         V{ } clone >>successors
         V{ } clone >>predecessors ;
 
-M: basic-block hashcode* nip id>> ;
-
 TUPLE: cfg
     { entry basic-block }
     word

basis/compiler/cfg/intrinsics/simd/simd-tests.factor

@@ -50,7 +50,7 @@ IN: compiler.cfg.intrinsics.simd.tests
 
 : test-compiler-env ( -- x )
     H{ } clone
-    T{ basic-block { id 0 } }
+    T{ basic-block }
     [ \ basic-block pick set-at ]
     [ 0 swap associate \ ds-heights pick set-at ]
     [ 0 swap associate \ rs-heights pick set-at ] tri

basis/compiler/cfg/linearization/linearization-tests.factor

@@ -11,4 +11,6 @@ V{ } 2 test-bb
 0 { 1 1 } edges
 1 2 edge
 
-[ t ] [ 0 get block>cfg linearization-order [ id>> ] map all-unique? ] unit-test
+{ { 0 1 2 } } [
+    0 get block>cfg linearization-order [ number>> ] map
+] unit-test