Removed most of the bogus CompilationInfo constructor calls.

test/unittests/compiler/instruction-selector-unittest.cc

Index: test/unittests/compiler/instruction-selector-unittest.cc
diff --git a/test/unittests/compiler/instruction-selector-unittest.cc b/test/unittests/compiler/instruction-selector-unittest.cc
index c9ade528b790e37ac037ae32d2d4db9c792bc624..d3e00c642c5e60817922757c9c885eca8e1e1ee8 100644
--- a/test/unittests/compiler/instruction-selector-unittest.cc
+++ b/test/unittests/compiler/instruction-selector-unittest.cc
@@ -36,7 +36,7 @@ InstructionSelectorTest::Stream InstructionSelectorTest::StreamBuilder::Build(
   }
   size_t const node_count = graph()->NodeCount();
   EXPECT_NE(0u, node_count);
-  Linkage linkage(test_->isolate(), test_->zone(), call_descriptor());
+  Linkage linkage(call_descriptor());
   InstructionBlocks* instruction_blocks =
       InstructionSequence::InstructionBlocksFor(test_->zone(), schedule);
   InstructionSequence sequence(test_->isolate(), test_->zone(),