Use contains now that it is availble.

Test: Unit tests pass.
Change-Id: I6189276c44074fc19743b31321c7e83490eef018

gtest_isolated/IsolateMain.cpp

diff --git a/gtest_isolated/IsolateMain.cpp b/gtest_isolated/IsolateMain.cpp
index 0d214f9..4cadc34 100644
--- a/gtest_isolated/IsolateMain.cpp
+++ b/gtest_isolated/IsolateMain.cpp
@@ -120,7 +120,7 @@
                                                   "riscv64-lldb-server",
                                                   "x86-lldb-server",
                                                   "x86_64-lldb-server"};
-      return debuggers.find(basename(buf)) == debuggers.end();
+      return !debuggers.contains(basename(buf));
     }
     // If we can't figure out what our parent was just assume we are fine to isolate.
   }