[class] Expand bytecode expectations coverage for class fields

Bug: v8:5367
Change-Id: Ib24190f6cfc0765794a1a5d9ac33cf1c1e2b6fba
Reviewed-on: https://chromium-review.googlesource.com/793150Reviewed-by: Mythri Alle <mythria@chromium.org>
Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49665}

test/cctest/interpreter/generate-bytecode-expectations.cc

@@ -278,8 +278,8 @@ void ProgramOptions::UpdateFromHeader(std::istream& stream) {
       do_expressions_ = ParseBoolean(line.c_str() + 16);
     } else if (line.compare(0, 17, "async iteration: ") == 0) {
       async_iteration_ = ParseBoolean(line.c_str() + 17);
-    } else if (line.compare(0, 14, "public fields: ") == 0) {
-      public_fields_ = ParseBoolean(line.c_str() + 14);
+    } else if (line.compare(0, 15, "public fields: ") == 0) {
+      public_fields_ = ParseBoolean(line.c_str() + 15);
     } else if (line == "---") {
       break;
     } else if (line.empty()) {

test/cctest/interpreter/test-bytecode-generator.cc

@@ -2240,23 +2240,48 @@ TEST(ClassFields) {
   BytecodeExpectationsPrinter printer(CcTest::isolate());
 
   const char* snippets[] = {
+      "{\n"
+      "  class A {\n"
+      "    a;\n"
+      "    ['b'];\n"
+      "    static c;\n"
+      "    static ['d'];\n"
+      "  }\n"
+      "\n"
+      "  class B {\n"
+      "    a = 1;\n"
+      "    ['b'] = this.a;\n"
+      "    static c = 3;\n"
+      "    static ['d'] = this.c;\n"
+      "  }\n"
+      "  new A;\n"
+      "  new B;\n"
+      "}\n",
+
       "{\n"
       "  class A extends class {} {\n"
       "    a;\n"
+      "    ['b'];\n"
       "    static c;\n"
+      "    static ['d'];\n"
       "  }\n"
       "\n"
       "  class B extends class {} {\n"
       "    a = 1;\n"
+      "    ['b'] = this.a;\n"
       "    static c = 3;\n"
+      "    static ['d'] = this.c;\n"
+      "    foo() { return 1; }\n"
       "    constructor() {\n"
       "      super();\n"
       "    }\n"
       "  }\n"
       "\n"
-      "  class C extends class {} {\n"
+      "  class C extends B {\n"
       "    a = 1;\n"
+      "    ['b'] = this.a;\n"
       "    static c = 3;\n"
+      "    static ['d'] = super.foo();\n"
       "    constructor() {\n"
       "      (() => super())();\n"
       "    }\n"