[es6] Perform the IsConstructor test in GetSuperConstructor.

test/cctest/interpreter/bytecode_expectations/BreakableBlocks.golden

 #
 # Autogenerated by generate-bytecode-expectations.
 #
 
 ---
 wrap: yes
 
 ---
 snippet: "
   var x = 0;
   label: {
     x = x + 1;
     break label;
     x = x + 1;
   }
   return x;
 "
 frame size: 1
 parameter count: 1
-bytecode array length: 16
+bytecode array length: 15
 bytecodes: [
   /*   30 E> */ B(StackCheck),
   /*   42 S> */ B(LdaZero),
                 B(Star), R(0),
-  /*   56 S> */ B(LdaSmi), U8(1),
-  /*   62 E> */ B(Add), R(0), U8(2),
+  /*   56 S> */ B(AddSmi), U8(1), R(0), U8(2),
                 B(Star), R(0),
   /*   69 S> */ B(Jump), U8(2),
   /*   97 S> */ B(Ldar), R(0),
   /*  107 S> */ B(Return),
 ]
 constant pool: [
 ]
 handlers: [
 ]
 
@@ skipping 26 matching lines @@
   /*  106 S> */ B(LdaZero),
                 B(Star), R(2),
   /*  111 S> */ B(LdaSmi), U8(3),
   /*  111 E> */ B(TestLessThan), R(2), U8(4),
                 B(JumpIfFalse), U8(34),
   /*   93 E> */ B(StackCheck),
   /*  129 S> */ B(Ldar), R(0),
                 B(Inc), U8(6),
                 B(Star), R(0),
   /*  142 S> */ B(Ldar), R(2),
-  /*  148 E> */ B(Add), R(1), U8(7),
+  /*  150 E> */ B(Add), R(1), U8(7),
                 B(Star), R(3),
                 B(LdaSmi), U8(12),
   /*  152 E> */ B(TestEqual), R(3), U8(8),
                 B(JumpIfFalse), U8(4),
   /*  161 S> */ B(Jump), U8(20),
   /*  118 S> */ B(Ldar), R(2),
                 B(Inc), U8(5),
                 B(Star), R(2),
                 B(JumpLoop), U8(-36), U8(1),
   /*   84 S> */ B(Ldar), R(1),
@@ skipping 90 matching lines @@
                 B(LdaUndefined),
   /*  162 S> */ B(Return),
 ]
 constant pool: [
   FIXED_ARRAY_TYPE,
   SHARED_FUNCTION_INFO_TYPE,
 ]
 handlers: [
 ]