[es6] Perform the IsConstructor test in GetSuperConstructor.

test/cctest/interpreter/bytecode_expectations/SuperCallAndSpread.golden

 #
 # Autogenerated by generate-bytecode-expectations.
 #
 
 ---
 wrap: no
 test function name: test
 
 ---
 snippet: "
   var test;
   (function() {
     class A {
       constructor(...args) { this.baseArgs = args; }
     }
     class B extends A {}
     test = new B(1, 2, 3).constructor;
   })();
 "
 frame size: 7
 parameter count: 1
-bytecode array length: 32
+bytecode array length: 29
 bytecodes: [
                 B(CreateRestParameter),
                 B(Star), R(2),
                 B(Mov), R(closure), R(1),
                 B(Mov), R(new_target), R(0),
                 B(Ldar), R(new_target),
   /*   93 E> */ B(StackCheck),
-  /*   93 S> */ B(CallRuntime), U16(Runtime::k_GetSuperConstructor), R(1), U8(1),
-                B(Star), R(3),
+  /*   93 S> */ B(Ldar), R(1),
+                B(GetSuperConstructor), R(3),
                 B(Mov), R(3), R(4),
                 B(Mov), R(0), R(5),
                 B(Mov), R(2), R(6),
   /*   93 E> */ B(NewWithSpread), R(4), U8(3),
   /*   93 S> */ B(Return),
 ]
 constant pool: [
 ]
 handlers: [
 ]
 
 ---
 snippet: "
   var test;
   (function() {
     class A {
       constructor(...args) { this.baseArgs = args; }
     }
     class B extends A {
       constructor(...args) { super(1, ...args); }
     }
     test = new B(1, 2, 3).constructor;
   })();
 "
 frame size: 8
 parameter count: 1
-bytecode array length: 69
+bytecode array length: 66
 bytecodes: [
                 B(CreateRestParameter),
                 B(Star), R(2),
                 B(Mov), R(closure), R(1),
                 B(Mov), R(new_target), R(0),
                 B(Ldar), R(new_target),
   /*  128 E> */ B(StackCheck),
-  /*  140 S> */ B(CallRuntime), U16(Runtime::k_GetSuperConstructor), R(1), U8(1),
-                B(Star), R(3),
+  /*  140 S> */ B(Ldar), R(1),
+                B(GetSuperConstructor), R(3),
                 B(LdaSmi), U8(1),
                 B(Star), R(6),
                 B(Mov), R(3), R(4),
                 B(Mov), R(0), R(5),
                 B(Mov), R(2), R(7),
-  /*  140 E> */ B(NewWithSpread), R(4), U8(4),
+  /*  152 E> */ B(NewWithSpread), R(4), U8(4),
                 B(Star), R(3),
                 B(Ldar), R(this),
                 B(JumpIfNotHole), U8(4),
                 B(Jump), U8(11),
                 B(LdaConstant), U8(0),
                 B(Star), R(4),
   /*  140 E> */ B(CallRuntime), U16(Runtime::kThrowReferenceError), R(4), U8(1),
                 B(Mov), R(3), R(this),
                 B(Ldar), R(this),
                 B(JumpIfNotHole), U8(11),
@@ skipping 35 matching lines @@
                 B(Star), R(3),
   /*  140 E> */ B(CallRuntime), U16(Runtime::k_GetSuperConstructor), R(1), U8(1),
                 B(Star), R(4),
                 B(LdaUndefined),
                 B(Star), R(7),
                 B(CreateArrayLiteral), U8(0), U8(0), U8(9),
                 B(Star), R(8),
                 B(LdaUndefined),
                 B(Star), R(11),
                 B(Mov), R(2), R(12),
-  /*  152 E> */ B(CallJSRuntime), U8(157), R(11), U8(2),
+  /*  152 E> */ B(CallJSRuntime), U8(155), R(11), U8(2),
                 B(Star), R(9),
                 B(CreateArrayLiteral), U8(1), U8(1), U8(9),
                 B(Star), R(10),
-                B(CallJSRuntime), U8(156), R(7), U8(4),
+                B(CallJSRuntime), U8(154), R(7), U8(4),
                 B(Star), R(5),
                 B(Mov), R(0), R(6),
-  /*  140 E> */ B(CallJSRuntime), U8(153), R(3), U8(4),
+  /*  140 E> */ B(CallJSRuntime), U8(151), R(3), U8(4),
                 B(Star), R(3),
                 B(Ldar), R(this),
                 B(JumpIfNotHole), U8(4),
                 B(Jump), U8(11),
                 B(LdaConstant), U8(2),
                 B(Star), R(4),
   /*  140 E> */ B(CallRuntime), U16(Runtime::kThrowReferenceError), R(4), U8(1),
                 B(Mov), R(3), R(this),
                 B(Ldar), R(this),
                 B(JumpIfNotHole), U8(11),
                 B(LdaConstant), U8(2),
                 B(Star), R(3),
                 B(CallRuntime), U16(Runtime::kThrowReferenceError), R(3), U8(1),
   /*  162 S> */ B(Return),
 ]
 constant pool: [
   FIXED_ARRAY_TYPE,
   FIXED_ARRAY_TYPE,
   ONE_BYTE_INTERNALIZED_STRING_TYPE ["this"],
 ]
 handlers: [
 ]