Index: tests/.expect/functions.arm64.txt
===================================================================
--- tests/.expect/functions.arm64.txt	(revision e1358c0ea59c560c010e5261b3e1fe2ac3ad8a2c)
+++ tests/.expect/functions.arm64.txt	(revision 30bf6bf3677858106dafefcbfae7eff10d078623)
@@ -139,5 +139,4 @@
 
 }
-struct _conc__tuple2_0;
 struct _conc__tuple2_0 {
     signed int field_0;
@@ -182,5 +181,4 @@
 
 }
-struct _conc__tuple3_1;
 struct _conc__tuple3_1 {
     signed int field_0;
@@ -202,5 +200,4 @@
     __attribute__ ((unused)) struct _conc__tuple3_1 _X9_retval_fT3iii_1 = {  };
 }
-struct _conc__tuple3_2;
 struct _conc__tuple3_2 {
     signed int field_0;
@@ -294,5 +291,4 @@
     __attribute__ ((unused)) signed int *const _X10_retval_f3KPi_1;
 }
-struct _conc__tuple2_3;
 struct _conc__tuple2_3 {
     signed int *field_0;
Index: tests/.expect/functions.x64.txt
===================================================================
--- tests/.expect/functions.x64.txt	(revision e1358c0ea59c560c010e5261b3e1fe2ac3ad8a2c)
+++ tests/.expect/functions.x64.txt	(revision 30bf6bf3677858106dafefcbfae7eff10d078623)
@@ -139,5 +139,4 @@
 
 }
-struct _conc__tuple2_0;
 struct _conc__tuple2_0 {
     signed int field_0;
@@ -182,5 +181,4 @@
 
 }
-struct _conc__tuple3_1;
 struct _conc__tuple3_1 {
     signed int field_0;
@@ -202,5 +200,4 @@
     __attribute__ ((unused)) struct _conc__tuple3_1 _X9_retval_fT3iii_1 = {  };
 }
-struct _conc__tuple3_2;
 struct _conc__tuple3_2 {
     signed int field_0;
@@ -294,5 +291,4 @@
     __attribute__ ((unused)) signed int *const _X10_retval_f3KPi_1;
 }
-struct _conc__tuple2_3;
 struct _conc__tuple2_3 {
     signed int *field_0;
Index: tests/.expect/functions.x86.txt
===================================================================
--- tests/.expect/functions.x86.txt	(revision e1358c0ea59c560c010e5261b3e1fe2ac3ad8a2c)
+++ tests/.expect/functions.x86.txt	(revision 30bf6bf3677858106dafefcbfae7eff10d078623)
@@ -139,5 +139,4 @@
 
 }
-struct _conc__tuple2_0;
 struct _conc__tuple2_0 {
     signed int field_0;
@@ -182,5 +181,4 @@
 
 }
-struct _conc__tuple3_1;
 struct _conc__tuple3_1 {
     signed int field_0;
@@ -202,5 +200,4 @@
     __attribute__ ((unused)) struct _conc__tuple3_1 _X9_retval_fT3iii_1 = {  };
 }
-struct _conc__tuple3_2;
 struct _conc__tuple3_2 {
     signed int field_0;
@@ -294,5 +291,4 @@
     __attribute__ ((unused)) signed int *const _X10_retval_f3KPi_1;
 }
-struct _conc__tuple2_3;
 struct _conc__tuple2_3 {
     signed int *field_0;