[coverage] Block coverage with support for IfStatements

test/unittests/interpreter/bytecode-array-builder-unittest.cc

Index: test/unittests/interpreter/bytecode-array-builder-unittest.cc
diff --git a/test/unittests/interpreter/bytecode-array-builder-unittest.cc b/test/unittests/interpreter/bytecode-array-builder-unittest.cc
index a9307fbed07de575e73b38d6936f0fa6bc5c729d..e937a2bd279c22c31339ce3e7b3901622f366633 100644
--- a/test/unittests/interpreter/bytecode-array-builder-unittest.cc
+++ b/test/unittests/interpreter/bytecode-array-builder-unittest.cc
@@ -371,6 +371,10 @@ TEST_F(BytecodeArrayBuilderTest, AllBytecodesGenerated) {
     builder.Debugger();
   }
 
+  // Emit block counter increments.
+  FLAG_block_coverage = true;  // Satisfy DCHECKs.

[rmcilroy, 2017/06/01 14:01:50]

This will unconditionally set the flag for all following unittests if they are
run in the same process. Please use the SaveFlags to save and restore the flags
at the start and end of this test.

[jgruber, 2017/06/02 06:39:27]

Done.

+  builder.IncBlockCounter(0);
+
   // Bind labels for long jumps at the very end.
   for (size_t i = 0; i < arraysize(end); i++) {
     builder.Bind(&end[i]);