[interpreter] Add CreateBlockContext bytecode

test/cctest/interpreter/bytecode_expectations/Generators.golden

 #
 # Autogenerated by generate-bytecode-expectations.
 #
 
 ---
 pool type: mixed
 execute: yes
 wrap: no
 test function name: f
 
@@ skipping 246 matching lines @@
   [41, 218, 224],
 ]
 
 ---
 snippet: "
   function* f() { for (let x of [42]) yield x }
   f();
 "
 frame size: 18
 parameter count: 1
-bytecode array length: 768
+bytecode array length: 752
 bytecodes: [
                 B(Ldar), R(new_target),
                 B(JumpIfUndefined), U8(26),
                 B(ResumeGenerator), R(new_target),
                 B(Star), R(4),
                 B(LdaZero),
                 B(TestEqualStrict), R(4),
                 B(JumpIfTrue), U8(59),
                 B(LdaSmi), U8(1),
                 B(TestEqualStrict), R(4),
@@ skipping 34 matching lines @@
                 B(LdaTrue),
                 B(Star), R(13),
                 B(Mov), R(10), R(12),
                 B(CallRuntime), U16(Runtime::k_CreateIterResultObject), R(12), U8(2),
                 B(Star), R(6),
                 B(LdaZero),
                 B(Star), R(5),
                 B(JumpConstant), U8(17),
                 B(Ldar), R(10),
   /*   11 E> */ B(Throw),
-                B(LdaConstant), U8(0),
-                B(Star), R(8),
-                B(Mov), R(closure), R(9),
-                B(CallRuntime), U16(Runtime::kPushBlockContext), R(8), U8(2),
+                B(Ldar), R(closure),
+                B(CreateBlockContext), U8(0),
                 B(PushContext), R(1),
                 B(LdaTheHole),
                 B(StaContextSlot), R(context), U8(4),
                 B(LdaZero),
                 B(StaContextSlot), R(1), U8(9),
                 B(Mov), R(context), R(10),
                 B(Mov), R(context), R(11),
   /*   30 S> */ B(CreateArrayLiteral), U8(1), U8(0), U8(3),
                 B(Star), R(13),
                 B(LdaConstant), U8(2),
@@ skipping 23 matching lines @@
                 B(LdaNamedProperty), R(12), U8(5), U8(9),
                 B(JumpIfToBooleanTrueConstant), U8(10),
                 B(LdrContextSlot), R(1), U8(8), R(12),
                 B(LdaNamedProperty), R(12), U8(6), U8(11),
                 B(StaContextSlot), R(1), U8(10),
                 B(LdaSmi), U8(2),
                 B(StaContextSlot), R(1), U8(9),
                 B(LdaContextSlot), R(1), U8(10),
                 B(StaContextSlot), R(1), U8(6),
   /*   16 E> */ B(StackCheck),
-                B(LdaConstant), U8(7),
-                B(Star), R(12),
-                B(Mov), R(closure), R(13),
-                B(CallRuntime), U16(Runtime::kPushBlockContext), R(12), U8(2),
+                B(Ldar), R(closure),
+                B(CreateBlockContext), U8(7),
                 B(PushContext), R(2),
                 B(LdaTheHole),
                 B(StaContextSlot), R(context), U8(4),
                 B(LdaContextSlot), R(1), U8(6),
                 B(StaContextSlot), R(context), U8(4),
   /*   36 S> */ B(LdaContextSlot), R(context), U8(4),
                 B(JumpIfNotHole), U8(11),
                 B(LdaConstant), U8(8),
                 B(Star), R(13),
                 B(CallRuntime), U16(Runtime::kThrowReferenceError), R(13), U8(1),
@@ skipping 33 matching lines @@
                 B(Star), R(9),
                 B(LdaZero),
                 B(Star), R(8),
                 B(Jump), U8(75),
                 B(Ldar), R(13),
   /*   36 E> */ B(Throw),
                 B(Ldar), R(13),
                 B(PopContext), R(2),
                 B(LdaZero),
                 B(StaContextSlot), R(1), U8(9),
-                B(Wide), B(Jump), U16(-223),
+                B(Wide), B(Jump), U16(-215),
                 B(Jump), U8(46),
                 B(Star), R(13),
                 B(LdaConstant), U8(11),
                 B(Star), R(12),
                 B(Mov), R(closure), R(14),
                 B(CallRuntime), U16(Runtime::kPushCatchContext), R(12), U8(3),
                 B(Star), R(11),
                 B(PushContext), R(2),
                 B(LdrContextSlot), R(0), U8(9), R(12),
                 B(LdaSmi), U8(2),
@@ skipping 154 matching lines @@
   kInstanceTypeDontCare,
   InstanceType::ONE_BYTE_INTERNALIZED_STRING_TYPE,
   InstanceType::ONE_BYTE_INTERNALIZED_STRING_TYPE,
   InstanceType::ONE_BYTE_INTERNALIZED_STRING_TYPE,
   InstanceType::ONE_BYTE_INTERNALIZED_STRING_TYPE,
   kInstanceTypeDontCare,
   kInstanceTypeDontCare,
   kInstanceTypeDontCare,
 ]
 handlers: [
-  [41, 687, 693],
-  [147, 442, 448],
-  [150, 396, 398],
-  [544, 556, 558],
+  [41, 671, 677],
+  [139, 426, 432],
+  [142, 380, 382],
+  [528, 540, 542],
 ]