diff --git a/core/inference/class/class-tests.factor b/core/inference/class/class-tests.factor
index ac64b53070..a2bd2453f4 100755
--- a/core/inference/class/class-tests.factor
+++ b/core/inference/class/class-tests.factor
@@ -349,6 +349,27 @@ cell-bits 32 = [
     ] { mod fixnum-mod } inlined?
 ] unit-test
 
+[ t ] [
+    [
+        { integer } declare [ 256 rem ] map
+    ] { mod fixnum-mod rem } inlined?
+] unit-test
+
+[ t ] [
+    [ 1000 [ 1+ ] map ] { 1+ fixnum+ } inlined?
+] unit-test
+
+[ t ] [
+    [
+        { integer } declare
+        dup 0 >= [
+            615949 * 797807 + 20 2^ mod dup 19 2^ -
+        ] [ dup ] if
+    ] { * + shift mod fixnum-mod fixnum* fixnum+ fixnum- } inlined?
+] unit-test
+
+! Later
+
 ! [ t ] [
 !     [
 !         { integer } declare [ 256 mod ] map
@@ -360,12 +381,3 @@ cell-bits 32 = [
 !         { integer } declare [ 0 >= ] map
 !     ] { >= fixnum>= } inlined?
 ! ] unit-test
-
-[ t ] [
-    [
-        { integer } declare
-        dup 0 >= [
-            615949 * 797807 + 20 2^ mod dup 19 2^ -
-        ] [ dup ] if
-    ] { * + shift mod fixnum-mod fixnum* fixnum+ fixnum- } inlined?
-] unit-test
diff --git a/core/inference/class/class.factor b/core/inference/class/class.factor
index 033d2cce7a..1c0f5a46e1 100755
--- a/core/inference/class/class.factor
+++ b/core/inference/class/class.factor
@@ -260,18 +260,14 @@ DEFER: (infer-classes)
 : merge-classes ( nodes node -- )
     >r (merge-classes) r> set-classes ;
 
-: (merge-intervals) ( nodes quot -- seq )
-    >r
-    [ node-input-intervals ] map
-    f pad-all flip
-    r> map ; inline
-
 : set-intervals ( seq node -- )
     node-out-d [ set-value-interval* ] 2reverse-each ;
 
 : merge-intervals ( nodes node -- )
-    >r [ dup first [ interval-union ] reduce ]
-    (merge-intervals) r> set-intervals ;
+    >r
+    [ node-input-intervals ] map f pad-all flip
+    [ dup first [ interval-union ] reduce ] map
+    r> set-intervals ;
 
 : annotate-merge ( nodes #merge/#entry -- )
     [ merge-classes ] [ merge-intervals ] 2bi ;