Enable roundeven expansion pattern (#13329)

Re-enables more tests from #12778.
diff --git a/compiler/src/iree/compiler/Codegen/Common/PolynomialApproximationPass.cpp b/compiler/src/iree/compiler/Codegen/Common/PolynomialApproximationPass.cpp
index 1f3294f..b1fda4d 100644
--- a/compiler/src/iree/compiler/Codegen/Common/PolynomialApproximationPass.cpp
+++ b/compiler/src/iree/compiler/Codegen/Common/PolynomialApproximationPass.cpp
@@ -35,6 +35,7 @@
       mathPatterns.add<math::ErfPolynomialApproximation>(&getContext());
     } else {
       populateMathPolynomialApproximationPatterns(mathPatterns);
+      populateExpandRoundEvenPattern(mathPatterns);
     }
     if (failed(applyPatternsAndFoldGreedily(getOperation(),
                                             std::move(mathPatterns)))) {
diff --git a/integrations/tensorflow/test/iree_tfl_tests/llvmcpu_mobilenet_v3-large_uint8.run b/integrations/tensorflow/test/iree_tfl_tests/llvmcpu_mobilenet_v3-large_uint8.run
index 87f34f1..e12a4ad 100644
--- a/integrations/tensorflow/test/iree_tfl_tests/llvmcpu_mobilenet_v3-large_uint8.run
+++ b/integrations/tensorflow/test/iree_tfl_tests/llvmcpu_mobilenet_v3-large_uint8.run
@@ -1,3 +1,2 @@
 # REQUIRES: llvmcpu
 # RUN: %PYTHON -m iree_tfl_tests.mobilenet_v3-large_uint8_test --target_backend=llvmcpu --artifacts_dir=%t
-# XFAIL: *
diff --git a/integrations/tensorflow/test/iree_tfl_tests/llvmcpu_resnet_50_int8.run b/integrations/tensorflow/test/iree_tfl_tests/llvmcpu_resnet_50_int8.run
index 21c1623..064727a 100644
--- a/integrations/tensorflow/test/iree_tfl_tests/llvmcpu_resnet_50_int8.run
+++ b/integrations/tensorflow/test/iree_tfl_tests/llvmcpu_resnet_50_int8.run
@@ -1,3 +1,2 @@
 # REQUIRES: llvmcpu
 # RUN: %PYTHON -m iree_tfl_tests.resnet_50_int8_test --target_backend=llvmcpu -artifacts_dir=%t
-# XFAIL: *
diff --git a/integrations/tensorflow/test/iree_tfl_tests/mobilenet_v3.run b/integrations/tensorflow/test/iree_tfl_tests/mobilenet_v3.run
index d35637a..d3e254e 100644
--- a/integrations/tensorflow/test/iree_tfl_tests/mobilenet_v3.run
+++ b/integrations/tensorflow/test/iree_tfl_tests/mobilenet_v3.run
@@ -1,2 +1 @@
 # RUN: %PYTHON -m iree_tfl_tests.mobilenet_v3_test --artifacts_dir=%t
-# XFAIL: *
diff --git a/integrations/tensorflow/test/iree_tfl_tests/person_detect.run b/integrations/tensorflow/test/iree_tfl_tests/person_detect.run
index 3808b71..cf8517b 100644
--- a/integrations/tensorflow/test/iree_tfl_tests/person_detect.run
+++ b/integrations/tensorflow/test/iree_tfl_tests/person_detect.run
@@ -1,2 +1 @@
 # RUN: %PYTHON -m iree_tfl_tests.person_detect_test --artifacts_dir=%t
-# XFAIL: *