Class fields, part 1 (parsing and infrastructure)

src/objects.h

Index: src/objects.h
diff --git a/src/objects.h b/src/objects.h
index 53471b47aaacf7de43e759fd3b7df1e2e06ddc3c..42a81dab1cbb284b99681713fb4ed66ce1619704 100644
--- a/src/objects.h
+++ b/src/objects.h
@@ -7320,6 +7320,12 @@ class SharedFunctionInfo: public HeapObject {
   // Indicates that this function is a default constructor.
   DECL_BOOLEAN_ACCESSORS(is_default_constructor)
 
+  // Indicates that this is a constructor for a base class with instance fields.
+  DECL_BOOLEAN_ACCESSORS(requires_class_field_init)
+  // Indicates that this is a synthesized function to set up class instance
+  // fields.
+  DECL_BOOLEAN_ACCESSORS(is_class_field_initializer)
+
   // Indicates that this function is an asm function.
   DECL_BOOLEAN_ACCESSORS(asm_function)
 
@@ -7608,6 +7614,8 @@ class SharedFunctionInfo: public HeapObject {
     kDeserialized,
     kIsDeclaration,
     kIsAsmWasmBroken,
+    kRequiresClassFieldInit,
+    kIsClassFieldInitializer,
     kCompilerHintsCount,  // Pseudo entry
   };
   // kFunctionKind has to be byte-aligned