Make some functions that are hit during renderer startup available for inlining

src/ast/ast.h

Index: src/ast/ast.h
diff --git a/src/ast/ast.h b/src/ast/ast.h
index f1a51ce4908a3f18fc98448a8fef4992616ce87d..d582d858755bd5523a10b7da3acdec5216704347 100644
--- a/src/ast/ast.h
+++ b/src/ast/ast.h
@@ -1585,8 +1585,18 @@ class VariableProxy final : public Expression {
   friend class AstNodeFactory;
 
   VariableProxy(Variable* var, int start_position);
+
   VariableProxy(const AstRawString* name, VariableKind variable_kind,
-                int start_position);
+                int start_position)
+      : Expression(start_position, kVariableProxy),
+        raw_name_(name),
+        next_unresolved_(nullptr) {
+    bit_field_ |= IsThisField::encode(variable_kind == THIS_VARIABLE) |
+                  IsAssignedField::encode(false) |
+                  IsResolvedField::encode(false) |
+                  HoleCheckModeField::encode(HoleCheckMode::kElided);
+  }
+
   explicit VariableProxy(const VariableProxy* copy_from);
 
   class IsThisField : public BitField<bool, Expression::kNextBitFieldIndex, 1> {