Change test helper to just check for asserts (not errors)

Setting the Vulkan layer produces two errors

util/test/rdtest/shared/Subgroup_Zoo.py

@@ -274,6 +274,6 @@ class Subgroup_Zoo(rdtest.TestCase):
         if overallFailed:
             raise rdtest.TestFailureException("Some tests were not as expected")
 
-        self.check_renderdoc_log()
+        self.check_renderdoc_log_asserts()
 
         rdtest.log.success("All tests matched")

util/test/rdtest/shared/Workgroup_Zoo.py

@@ -27,6 +27,6 @@ class Workgroup_Zoo(rdtest.Subgroup_Zoo):
         if self.check_compute_tests(compute_dims, thread_checks):
             raise rdtest.TestFailureException("Some tests were not as expected")
 
-        self.check_renderdoc_log()
+        self.check_renderdoc_log_asserts()
 
         rdtest.log.success("All tests matched")

util/test/rdtest/testcase.py

@@ -893,17 +893,13 @@ class TestCase:
                     taskIdx += 1
         return data
 
-    def check_renderdoc_log(self, asserts: bool = True, errors: bool = True):
+    def check_renderdoc_log_asserts(self):
         countAsserts = 0
-        countErrors = 0
         rdlog = rd.GetLogFile()
         with open(rdlog, 'r') as f:
             for line in f:
-                if asserts and 'Assertion' in line:
+                if 'Assertion' in line:
                     log.error(line)
                     countAsserts += 1
-                elif errors and 'Error' in line:
-                    log.error(line)
-                    countErrors += 1
-        if countAsserts > 0 or countErrors > 0:
-            raise TestFailureException(f'Renderdoc log file contains {countAsserts} Asserts and {countErrors} Errors')
+        if countAsserts > 0:
+            raise TestFailureException(f'Renderdoc log file contains {countAsserts} Asserts')

util/test/tests/D3D12/D3D12_Shader_DebugData_Zoo.py

@@ -227,6 +227,6 @@ class D3D12_Shader_DebugData_Zoo(rdtest.TestCase):
         if failed:
             raise rdtest.TestFailureException("Some tests were not as expected")
 
-        self.check_renderdoc_log()
+        self.check_renderdoc_log_asserts()
 
         rdtest.log.success("All tests matched")