Remove ansi escape chars in assertExpectedInline and add options to s…

…kip comments and to skip empty lines (pytorch#134248)

I had a night mare rewriting tests in test_misc.py specifically :
1. graphs can have comments that refers to my files "/lsakka/.." we really dont care about comments add option to ignore comments.
2. empty lines added when EXPECTTEST_ACCEPT=1  are changed with linter causing tests to fail or linter fail!
add flag to ignore empty lines.
3. EXPECTTEST_ACCEPT fails when the text have some not readable characters. those should not effect comparing strings, also those causes weird diffs comments when tests fails. I removed ansi_escape chars pytorch#133045

this is used in

Pull Request resolved: pytorch#134248
Approved by: https://github.com/aorenste
ghstack dependencies: pytorch#133639, pytorch#134364

torch/testing/_internal/common_utils.py

@@ -2867,7 +2867,44 @@ def assertLeaksNoCudaTensors(self, name=None):
     def enforceNonDefaultStream(self):
         return CudaNonDefaultStream()
 
-    def assertExpectedInline(self, actual, expect, skip=0):
+    def _remove_ansi_escape(self, input):
+        # 7-bit C1 ANSI sequences
+        ansi_escape = re.compile(r'''
+            \x1B  # ESC
+            (?:   # 7-bit C1 Fe (except CSI)
+                [@-Z\\-_]
+            |     # or [ for CSI, followed by a control sequence
+                \[
+                [0-?]*  # Parameter bytes
+                [ -/]*  # Intermediate bytes
+                [@-~]   # Final byte
+            )
+        ''', re.VERBOSE)
+        return ansi_escape.sub('', input)
+
+    def remove_comment_lines(self, input_string):
+        lines = input_string.split('\n')
+        filtered_lines = [line for line in lines if not line.strip().startswith('#')]
+        return '\n'.join(filtered_lines)
+
+    def remove_empty_lines(self, input_string):
+        lines = input_string.split('\n')
+        filtered_lines = [line for line in lines if not line.strip() == '']
+        return '\n'.join(filtered_lines)
+
+    # ignore comments will ignore lines that starts with # after being stripped
+    def assertExpectedInline(self, actual, expect, skip=0, ignore_comments=False, ignore_empty_lines=False):
+        actual = actual if isinstance(actual, str) else str(actual)
+        actual = self._remove_ansi_escape(actual)
+        expect = self._remove_ansi_escape(expect)
+        if ignore_comments:
+            actual = self.remove_comment_lines(actual)
+            expect = self.remove_comment_lines(expect)
+
+        if ignore_empty_lines:
+            actual = self.remove_empty_lines(actual)
+            expect = self.remove_empty_lines(expect)
+
         return super().assertExpectedInline(actual if isinstance(actual, str) else str(actual), expect, skip + 1)
 
     # Munges exceptions that internally contain stack traces, using munge_exc