[cleanup] Remove DISALLOW_COPY_AND_ASSIGN in regexp/

Bug: v8:11074
Change-Id: I8deefa9cf5ac10b769e4ebb7029a82957cf669c3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2525540Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#71029}

src/regexp/experimental/experimental-compiler.cc

@@ -194,6 +194,11 @@ struct Label {
     DCHECK_GE(bound_index_, 0);
   }
 
+  // Don't copy, don't move.  Moving could be implemented, but it's not
+  // needed anywhere.
+  Label(const Label&) = delete;
+  Label& operator=(const Label&) = delete;
+
  private:
   friend class BytecodeAssembler;
 
@@ -204,10 +209,6 @@ struct Label {
     int unbound_patch_list_begin_ = -1;
     int bound_index_;
   };
-
-  // Don't copy, don't move.  Moving could be implemented, but it's not
-  // needed anywhere.
-  DISALLOW_COPY_AND_ASSIGN(Label);
 };
 
 class BytecodeAssembler {

src/regexp/regexp-compiler.cc

@@ -1777,10 +1777,11 @@ class LoopInitializationMarker {
     DCHECK(node_->traversed_loop_initialization_node_);
     node_->traversed_loop_initialization_node_ = false;
   }
+  LoopInitializationMarker(const LoopInitializationMarker&) = delete;
+  LoopInitializationMarker& operator=(const LoopInitializationMarker&) = delete;
 
  private:
   LoopChoiceNode* node_;
-  DISALLOW_COPY_AND_ASSIGN(LoopInitializationMarker);
 };
 
 // Temporarily decrements min_loop_iterations_.
@@ -1791,10 +1792,11 @@ class IterationDecrementer {
     --node_->min_loop_iterations_;
   }
   ~IterationDecrementer() { ++node_->min_loop_iterations_; }
+  IterationDecrementer(const IterationDecrementer&) = delete;
+  IterationDecrementer& operator=(const IterationDecrementer&) = delete;
 
  private:
   LoopChoiceNode* node_;
-  DISALLOW_COPY_AND_ASSIGN(IterationDecrementer);
 };
 
 RegExpNode* SeqRegExpNode::FilterOneByte(int depth) {

src/regexp/regexp-interpreter.cc

@@ -125,6 +125,8 @@ uint32_t LoadPacked24Unsigned(int32_t bytecode_and_packed_arg) {
 class BacktrackStack {
  public:
   BacktrackStack() = default;
+  BacktrackStack(const BacktrackStack&) = delete;
+  BacktrackStack& operator=(const BacktrackStack&) = delete;
 
   V8_WARN_UNUSED_RESULT bool push(int v) {
     data_.emplace_back(v);
@@ -157,8 +159,6 @@ class BacktrackStack {
 
   static constexpr int kMaxSize =
       RegExpStack::kMaximumStackSize / sizeof(ValueT);
-
-  DISALLOW_COPY_AND_ASSIGN(BacktrackStack);
 };
 
 // Registers used during interpreter execution. These consist of output

src/regexp/regexp-stack.h

@@ -26,13 +26,13 @@ class RegExpStackScope {
   // Initializes the stack memory area if necessary.
   explicit RegExpStackScope(Isolate* isolate);
   ~RegExpStackScope();  // Releases the stack if it has grown.
+  RegExpStackScope(const RegExpStackScope&) = delete;
+  RegExpStackScope& operator=(const RegExpStackScope&) = delete;
 
   RegExpStack* stack() const { return regexp_stack_; }
 
  private:
   RegExpStack* regexp_stack_;
-
-  DISALLOW_COPY_AND_ASSIGN(RegExpStackScope);
 };
 
 
@@ -40,6 +40,8 @@ class RegExpStack {
  public:
   RegExpStack();
   ~RegExpStack();
+  RegExpStack(const RegExpStack&) = delete;
+  RegExpStack& operator=(const RegExpStack&) = delete;
 
   // Number of allocated locations on the stack below the limit.
   // No sequence of pushes must be longer that this without doing a stack-limit
@@ -138,8 +140,6 @@ class RegExpStack {
   friend class ExternalReference;
   friend class Isolate;
   friend class RegExpStackScope;
-
-  DISALLOW_COPY_AND_ASSIGN(RegExpStack);
 };
 
 }  // namespace internal