[Interpreter] Inline FastCloneRegExpStub to CreateRegExpLiteral bytecode handler.

src/code-stubs.h

Index: src/code-stubs.h
diff --git a/src/code-stubs.h b/src/code-stubs.h
index 17b193e748e0fbd92537980d8a0305fe46b090e7..eef3784acc60b458155c5f60f56b8da29d662370 100644
--- a/src/code-stubs.h
+++ b/src/code-stubs.h
@@ -1169,6 +1169,13 @@ class FastCloneRegExpStub final : public TurboFanCodeStub {
  public:
   explicit FastCloneRegExpStub(Isolate* isolate) : TurboFanCodeStub(isolate) {}
 
+  static compiler::Node* Generate(CodeStubAssembler* assembler,
+                                  compiler::Node* closure,
+                                  compiler::Node* literal_index,
+                                  compiler::Node* pattern,
+                                  compiler::Node* flags,
+                                  compiler::Node* context);
+
  private:
   DEFINE_CALL_INTERFACE_DESCRIPTOR(FastCloneRegExp);
   DEFINE_TURBOFAN_CODE_STUB(FastCloneRegExp, TurboFanCodeStub);