Improve --optimization-filter to accept a comma-separated list of strings.

Improve --optimization-filter to accept a comma-separated list of strings.

Only functions where the fully-qualified name contains one of the strings supplied
as substring will be optimized.

This helps tracking down bugs in the optimizing compiler that occur when a
large number of optimized functions are involved.

R=kmillikin@google.com

Committed: https://code.google.com/p/dart/source/detail?r=28578

[Kevin Millikin (Google), 2013-10-14 11:09:28]

LGTM.

https://codereview.chromium.org/25446003/diff/1/runtime/vm/code_generator.cc
File runtime/vm/code_generator.cc (right):

https://codereview.chromium.org/25446003/diff/1/runtime/vm/code_generator.cc#...
runtime/vm/code_generator.cc:1252: while (token != NULL) {
Without the found flag :)

char* token = NULL;
do {
  token = strtok_r(filter, ",", &save_ptr);
  if (token == NULL) {  // No match.
    delete[] filter;
    function.set_usage_counter(kLowInvocationCount);
    return false;
  }
} while (strstr(function_name, token) == NULL);
// Match.
delete[] filter;

[Florian Schneider, 2013-10-14 12:21:47]

Committed patchset #1 manually as r28578 (presubmit successful).