[es6] Perform the IsConstructor test in GetSuperConstructor.

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 3242259a5886b14b908b1647a42d7322da371c30..588a649d1e5cab76ea879b6f247f326a69dca3f2 100644
--- a/test/unittests/interpreter/bytecode-array-builder-unittest.cc
+++ b/test/unittests/interpreter/bytecode-array-builder-unittest.cc
@@ -213,6 +213,9 @@ TEST_F(BytecodeArrayBuilderTest, AllBytecodesGenerated) {
       .ConvertAccumulatorToObject(reg)
       .ConvertAccumulatorToName(reg);
 
+  // Emit GetSuperConstructor.
+  builder.GetSuperConstructor(reg);
+
   // Short jumps with Imm8 operands
   {
     BytecodeLabel start, after_jump1, after_jump2, after_jump3, after_jump4,