[contrib] validate_failures.py: Renaming cleanup

Rename _VALID_TEST_RESULTS* to _INTERESTING_RESULTS*,
which better describes the purpose.  Subsequent patch
will define _VALID_TEST_RESULTS to accept all valid
result entries, including PASS, XFAIL, etc.

Change-Id: Iad74d058d48f40ba08d9a87e18f93770fd6e4089
diff --git a/contrib/testsuite-management/validate_failures.py b/contrib/testsuite-management/validate_failures.py
index 11bb6f7..5a4df6b 100755
--- a/contrib/testsuite-management/validate_failures.py
+++ b/contrib/testsuite-management/validate_failures.py
@@ -60,10 +60,10 @@
 import re
 import sys
 
-_VALID_TEST_RESULTS = [ 'FAIL', 'UNRESOLVED', 'XPASS', 'ERROR' ]
+_INTERESTING_RESULTS = [ 'FAIL', 'UNRESOLVED', 'XPASS', 'ERROR' ]
 # <STATE>: <NAME> <DESCRIPTION"
-_VALID_TEST_RESULTS_REX = re.compile('(%s):\s*(\S+)\s*(.*)'
-                                     % "|".join(_VALID_TEST_RESULTS))
+_INTERESTING_RESULTS_REX = re.compile('(%s):\s*(\S+)\s*(.*)'
+                                      % "|".join(_INTERESTING_RESULTS))
 
 # Formats of .sum file sections
 _TOOL_LINE_FORMAT = '\t\t=== %s tests ===\n'
@@ -134,7 +134,7 @@
       try:
         (self.state,
          self.name,
-         self.description) = _VALID_TEST_RESULTS_REX.match(summary_line).groups()
+         self.description) = _INTERESTING_RESULTS_REX.match(summary_line).groups()
         if _OPTIONS.srcpath_regex and _OPTIONS.srcpath_regex != '':
           self.description = re.sub(_OPTIONS.srcpath_regex, '',
                                     self.description)
@@ -154,7 +154,7 @@
     except ValueError:
       Error('Cannot parse summary line "%s"' % summary_line)
 
-    if self.state not in _VALID_TEST_RESULTS:
+    if self.state not in _INTERESTING_RESULTS:
       Error('Invalid test result %s in "%s" (parsed as "%s")' % (
             self.state, summary_line, self))
 
@@ -286,7 +286,7 @@
 
 def SplitAttributesFromSummaryLine(line):
   """Splits off attributes from a summary line, if present."""
-  if '|' in line and not _VALID_TEST_RESULTS_REX.match(line):
+  if '|' in line and not _INTERESTING_RESULTS_REX.match(line):
     (attrs, line) = line.split('|', 1)
     attrs = attrs.strip()
   else:
@@ -298,17 +298,17 @@
 def IsInterestingResult(result_set, line):
   """Return True if line is one of the summary lines we care about."""
   (_, line) = SplitAttributesFromSummaryLine(line)
-  valid_result = bool(_VALID_TEST_RESULTS_REX.match(line))
+  interesting_result = bool(_INTERESTING_RESULTS_REX.match(line))
 
   # If there's no tool defined it means that either the results section hasn't
   # started yet, or it is already over.
-  if valid_result and result_set.current_tool is None:
+  if interesting_result and result_set.current_tool is None:
     if _OPTIONS.verbosity >= 3:
       print(f'WARNING: Result "{line}" found outside sum file boundaries.',
             file=sys.stderr)
     return False
 
-  return valid_result
+  return interesting_result
 
 
 def IsToolLine(line):