[Interpreter] Refactor bytecode generator test suite.

test/cctest/interpreter/IllegalRedeclaration.golden

Index: test/cctest/interpreter/IllegalRedeclaration.golden
diff --git a/test/cctest/interpreter/IllegalRedeclaration.golden b/test/cctest/interpreter/IllegalRedeclaration.golden
new file mode 100644
index 0000000000000000000000000000000000000000..cf28c9b38da793e678ebc5871bf4aa1fe94248cf
--- /dev/null
+++ b/test/cctest/interpreter/IllegalRedeclaration.golden
@@ -0,0 +1,31 @@
+#
+# Autogenerated by generate-bytecode-expectations
+#
+
+---
+pool type: mixed
+execute: yes
+wrap: yes
+legacy const: yes
+
+---
+snippet: "
+  const a = 1; { var a = 2; }
+"
+frame size: 3  # in multiples of sizeof(void*)
+parameter count: 1
+bytecodes: [
+  B(LdaConstant), U8(0),
+  B(Star), R(1),
+  B(LdaConstant), U8(1),
+  B(Star), R(2),
+  B(CallRuntime), U16(260), R(1), U8(2),
+  B(Throw),
+]
+constant pool: [
+  kInstanceTypeDontCare,
+  InstanceType::ONE_BYTE_INTERNALIZED_STRING_TYPE,
+]
+handlers: [
+]
+