Rename "parallel recompilation" to "concurrent recompilation".

test/mjsunit/parallel-optimize-disabled.js

Index: test/mjsunit/parallel-optimize-disabled.js
diff --git a/test/mjsunit/parallel-optimize-disabled.js b/test/mjsunit/parallel-optimize-disabled.js
index e19dbd095bbb9bdcca746b28cf74836df917a669..c144e649cc921e2593fa8d47e573a1fe4821861c 100644
--- a/test/mjsunit/parallel-optimize-disabled.js
+++ b/test/mjsunit/parallel-optimize-disabled.js
@@ -25,11 +25,11 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-// Flags: --nodead-code-elimination --parallel-recompilation
+// Flags: --nodead-code-elimination --concurrent-recompilation
 // Flags: --allow-natives-syntax
 
-if (!%IsParallelRecompilationSupported()) {
-  print("Parallel recompilation is disabled. Skipping this test.");
+if (!%IsConcurrentRecompilationSupported()) {
+  print("Concurrent recompilation is disabled. Skipping this test.");
   quit();
 }
 
@@ -45,7 +45,7 @@ function f(x) {
 f();
 f();
 %OptimizeFunctionOnNextCall(f);
-%OptimizeFunctionOnNextCall(g, "parallel");
+%OptimizeFunctionOnNextCall(g, "concurrent");
 f(0);  // g() is disabled for optimization on inlining attempt.
 // Attempt to optimize g() should not run into any assertion.
 assertUnoptimized(g, "sync");