LibJS: Add bytecode instructions for modulo and exponentiation

Author: https://github.com/gunnarbeutner
Commit: 55f0791b13
Pull-request: https://github.com/SerenityOS/serenity/pull/7882

Userland/Libraries/LibJS/Bytecode/Op.h

@@ -108,6 +108,44 @@ private:
     Register m_src2;
 };
 
+class Mod final : public Instruction {
+public:
+    Mod(Register dst, Register src1, Register src2)
+        : Instruction(Type::Mod)
+        , m_dst(dst)
+        , m_src1(src1)
+        , m_src2(src2)
+    {
+    }
+
+    void execute(Bytecode::Interpreter&) const;
+    String to_string() const;
+
+private:
+    Register m_dst;
+    Register m_src1;
+    Register m_src2;
+};
+
+class Exp final : public Instruction {
+public:
+    Exp(Register dst, Register src1, Register src2)
+        : Instruction(Type::Exp)
+        , m_dst(dst)
+        , m_src1(src1)
+        , m_src2(src2)
+    {
+    }
+
+    void execute(Bytecode::Interpreter&) const;
+    String to_string() const;
+
+private:
+    Register m_dst;
+    Register m_src1;
+    Register m_src2;
+};
+
 class LessThan final : public Instruction {
 public:
     LessThan(Register dst, Register src1, Register src2)