fix dialect group for codegen test

Author: kaihsin

test/stim/passes/stim_reference_programs/qubit/for_loop_nontrivial_index.stim

@@ -1,4 +1,3 @@
-
 H 0
 CX 0 1
 CX 1 2

test/stim/passes/stim_reference_programs/qubit/nested_for_loop.stim

@@ -1,4 +1,3 @@
-
 H 0
 CX 0 2
 CX 1 2

test/stim/passes/stim_reference_programs/qubit/nested_list.stim

@@ -1,3 +1,2 @@
-
 H 0
 H 2

test/stim/passes/stim_reference_programs/qubit/non_pure_loop_iterator.stim

@@ -1,4 +1,3 @@
-
 MZ(0.00000000) 0 1 2 3 4
 X 0
 X 1

test/stim/passes/test_squin_noise_to_stim.py

@@ -253,7 +253,7 @@ def test():
     SquinToStimPass(test.dialects)(test)
 
     buf = io.StringIO()
-    emit = EmitStimMain(test.dialects, correlation_identifier_offset=10, io=buf)
+    emit = EmitStimMain(stim.main, correlation_identifier_offset=10, io=buf)
     emit.initialize()
     emit.run(test)
     stim_str = buf.getvalue().strip()