[Test][Time profiler] Fix test for python3

[anton-afanasyev]

Summary

Fix test checking time profiler generates correct tracing json-file.
filter works differently for python2 and python3, so unifying this.

[nathanchance]

The test case passes for me after this, thanks for the fix!

[anton-afanasyev]

Could you please give LGTM?

[nathanchance]

LGTM.

cfe/trunk/test/Driver/check-time-trace-sections.py

 #!/usr/bin/env python
 
 import json, sys
 
 def is_inside(range1, range2):
     a = range1["ts"]; b = a + range1["dur"]
     c = range2["ts"]; d = c + range2["dur"]
     return (a >= c and a <= d) and (b >= c and b <= d)
 
 def is_before(range1, range2):
     b = range1["ts"] + range1["dur"]; c = range2["ts"]
     return b <= c
 
 events = json.loads(sys.stdin.read())["traceEvents"]
-codegens = filter(lambda x: x["name"] == "CodeGen Function", events)
-frontends = filter(lambda x: x["name"] == "Frontend", events)
-backends = filter(lambda x: x["name"] == "Backend", events)
+codegens = [event for event in events if event["name"] == "CodeGen Function"]
+frontends = [event for event in events if event["name"] == "Frontend"]
+backends = [event for event in events if event["name"] == "Backend"]
 
 if not all([any([is_inside(codegen, frontend) for frontend in frontends])
                         for codegen in codegens]):
     sys.exit("Not all CodeGen sections are inside any Frontend section!")
 
 if not all([all([is_before(frontend, backend) for frontend in frontends])
                         for backend in backends]):
     sys.exit("Not all Frontend section are before all Backend sections!")