Overhaul additional sanity tests. (#36803)

* Remove unnecessary sys.exit calls.
* Add files filtering for code-smell tests.
* Enhance test-constraints code-smell test.
* Simplify compile sanity test.
* Pass paths to importer on stdin.
* Pass paths to yamllinter on stdin.
* Add work-around for unicode path filtering.
* Enhance configure-remoting-ps1 code-smell test.
* Enhance integration-aliases code-smell test.
* Enhance azure-requirements code-smell test.
* Enhance no-illegal-filenames code-smell test.

test/sanity/code-smell/no-assert.py

@@ -8,22 +8,16 @@ ASSERT_RE = re.compile(r'.*(?<![-:a-zA-Z#][ -])\bassert\b(?!:).*')
 
 
 def main():
-    failed = False
-
     for path in sys.argv[1:] or sys.stdin.read().splitlines():
         with open(path, 'r') as f:
             for i, line in enumerate(f.readlines()):
                 matches = ASSERT_RE.findall(line)
 
                 if matches:
-                    failed = True
                     lineno = i + 1
                     colno = line.index('assert') + 1
                     print('%s:%d:%d: raise AssertionError instead of: %s' % (path, lineno, colno, matches[0][colno - 1:]))
 
-    if failed:
-        sys.exit(1)
-
 
 if __name__ == '__main__':
     main()