[Interpreter] Refactor bytecode generator test suite.

test/cctest/interpreter/ContextVariables.golden

Index: test/cctest/interpreter/ContextVariables.golden
diff --git a/test/cctest/interpreter/ContextVariables.golden b/test/cctest/interpreter/ContextVariables.golden
new file mode 100644
index 0000000000000000000000000000000000000000..d1112561324bdad07b5cc181ade1f8d7638ba568
--- /dev/null
+++ b/test/cctest/interpreter/ContextVariables.golden
@@ -0,0 +1,147 @@
+#
+# Autogenerated by generate-bytecode-expectations
+#
+
+---
+pool type: mixed
+execute: yes
+wrap: yes
+
+---
+snippet: "
+  var a; return function() { a = 1; };
+"
+frame size: 1  # in multiples of sizeof(void*)
+parameter count: 1
+bytecodes: [
+  B(CallRuntime), U16(461), R(closure), U8(1),
+  B(PushContext), R(0),
+  B(StackCheck),
+  B(CreateClosure), U8(0), U8(0),
+  B(Return),
+]
+constant pool: [
+  InstanceType::SHARED_FUNCTION_INFO_TYPE,
+]
+handlers: [
+]
+
+---
+snippet: "
+  var a = 1; return function() { a = 2; };
+"
+frame size: 1  # in multiples of sizeof(void*)
+parameter count: 1
+bytecodes: [
+  B(CallRuntime), U16(461), R(closure), U8(1),
+  B(PushContext), R(0),
+  B(StackCheck),
+  B(LdaSmi8), U8(1),
+  B(StaContextSlot), R(context), U8(4),
+  B(CreateClosure), U8(0), U8(0),
+  B(Return),
+]
+constant pool: [
+  InstanceType::SHARED_FUNCTION_INFO_TYPE,
+]
+handlers: [
+]
+
+---
+snippet: "
+  var a = 1; var b = 2; return function() { a = 2; b = 3 };
+"
+frame size: 1  # in multiples of sizeof(void*)
+parameter count: 1
+bytecodes: [
+  B(CallRuntime), U16(461), R(closure), U8(1),
+  B(PushContext), R(0),
+  B(StackCheck),
+  B(LdaSmi8), U8(1),
+  B(StaContextSlot), R(context), U8(4),
+  B(LdaSmi8), U8(2),
+  B(StaContextSlot), R(context), U8(5),
+  B(CreateClosure), U8(0), U8(0),
+  B(Return),
+]
+constant pool: [
+  InstanceType::SHARED_FUNCTION_INFO_TYPE,
+]
+handlers: [
+]
+
+---
+snippet: "
+  var a; (function() { a = 2; })(); return a;
+"
+frame size: 3  # in multiples of sizeof(void*)
+parameter count: 1
+bytecodes: [
+  B(CallRuntime), U16(461), R(closure), U8(1),
+  B(PushContext), R(0),
+  B(StackCheck),
+  B(LdaUndefined),
+  B(Star), R(2),
+  B(CreateClosure), U8(0), U8(0),
+  B(Star), R(1),
+  B(Call), R(1), R(2), U8(1), U8(1),
+  B(LdaContextSlot), R(context), U8(4),
+  B(Return),
+]
+constant pool: [
+  InstanceType::SHARED_FUNCTION_INFO_TYPE,
+]
+handlers: [
+]
+
+---
+snippet: "
+  'use strict'; let a = 1; { let b = 2; return function() { a + b; }; }
+"
+frame size: 4  # in multiples of sizeof(void*)
+parameter count: 1
+bytecodes: [
+  B(CallRuntime), U16(461), R(closure), U8(1),
+  B(PushContext), R(0),
+  B(LdaTheHole),
+  B(StaContextSlot), R(context), U8(4),
+  B(StackCheck),
+  B(LdaSmi8), U8(1),
+  B(StaContextSlot), R(context), U8(4),
+  B(LdaConstant), U8(0),
+  B(Star), R(2),
+  B(Ldar), R(closure),
+  B(Star), R(3),
+  B(CallRuntime), U16(464), R(2), U8(2),
+  B(PushContext), R(1),
+  B(LdaTheHole),
+  B(StaContextSlot), R(context), U8(4),
+  B(LdaSmi8), U8(2),
+  B(StaContextSlot), R(context), U8(4),
+  B(CreateClosure), U8(1), U8(0),
+  B(PopContext), R(0),
+  B(Return),
+]
+constant pool: [
+  InstanceType::FIXED_ARRAY_TYPE,
+  InstanceType::SHARED_FUNCTION_INFO_TYPE,
+]
+handlers: [
+]
+
+---
+snippet: "
+  'use strict';
+"
+frame size: 0
+parameter count: 1
+bytecodes: [
+  B(StackCheck),
+  B(LdaUndefined),
+  B(Return),
+]
+constant pool: [
+]
+handlers: [
+]
+