[turbofan] Enable concurrent (re)compilation.

test/cctest/compiler/test-run-bytecode-graph-builder.cc

Index: test/cctest/compiler/test-run-bytecode-graph-builder.cc
diff --git a/test/cctest/compiler/test-run-bytecode-graph-builder.cc b/test/cctest/compiler/test-run-bytecode-graph-builder.cc
index 580e3b1e4488642a520051d9f8ba648299bf1d50..024747f9f76fbc83f10848dde57bee6064897c1e 100644
--- a/test/cctest/compiler/test-run-bytecode-graph-builder.cc
+++ b/test/cctest/compiler/test-run-bytecode-graph-builder.cc
@@ -129,8 +129,7 @@ class BytecodeGraphTester {
     compilation_info.SetOptimizing();
     compilation_info.MarkAsDeoptimizationEnabled();
     compilation_info.MarkAsOptimizeFromBytecode();
-    compiler::Pipeline pipeline(&compilation_info);
-    Handle<Code> code = pipeline.GenerateCode();
+    Handle<Code> code = Pipeline::GenerateCodeForTesting(&compilation_info);
     function->ReplaceCode(*code);
 
     return function;