Fix stim tests by removing newlines

Author: david-pl

test/stim/passes/stim_reference_programs/debug/debug.stim

@@ -1,2 +1 @@
-
 # debug message

test/stim/passes/stim_reference_programs/qubit/pick_if_else.stim

@@ -1,2 +1 @@
-
 H 1

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

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

test/stim/passes/stim_reference_programs/qubit/qubit_broadcast.stim

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

test/stim/passes/stim_reference_programs/qubit/qubit_loss.stim

@@ -1,4 +1,3 @@
-
 H 0 1 2 3 4
 I_ERROR[loss](0.10000000) 3
 I_ERROR[loss](0.05000000) 0 1 2 3 4

test/stim/passes/stim_reference_programs/qubit/qubit_reset.stim

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

test/stim/passes/stim_reference_programs/qubit/rep_code.stim

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

test/stim/passes/stim_reference_programs/qubit/u3_gates.stim

@@ -1,4 +1,3 @@
-
 Z 0
 SQRT_X_DAG 0
 SQRT_X_DAG 0

test/stim/passes/stim_reference_programs/qubit/u3_to_clifford.stim

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

test/stim/passes/test_squin_noise_to_stim.py

@@ -252,10 +252,11 @@ def test():
 
     SquinToStimPass(test.dialects)(test)
 
-    emit = EmitStimMain(correlation_identifier_offset=10)
+    buf = io.StringIO()
+    emit = EmitStimMain(test.dialects, correlation_identifier_offset=10, io=buf)
     emit.initialize()
-    emit.run(mt=test, args=())
-    stim_str = emit.get_output().strip()
+    emit.run(test)
+    stim_str = buf.getvalue().strip()
     assert stim_str == "I_ERROR[correlated_loss:10](0.10000000) 0 1 2 3"