LibJS/JIT: Add builtin for Math.floor()

Author: https://github.com/awesomekling
Commit: 08590adf40
Pull-request: https://github.com/SerenityOS/serenity/pull/22041
Reviewed-by: https://github.com/skyrising

Userland/Libraries/LibJS/Bytecode/Builtins.h

@@ -12,10 +12,11 @@
 namespace JS::Bytecode {
 
 // TitleCaseName, snake_case_name, base, property, argument_count
-#define JS_ENUMERATE_BUILTINS(O)       \
-    O(MathAbs, math_abs, Math, abs, 1) \
-    O(MathLog, math_log, Math, log, 1) \
-    O(MathPow, math_pow, Math, pow, 2) \
+#define JS_ENUMERATE_BUILTINS(O)             \
+    O(MathAbs, math_abs, Math, abs, 1)       \
+    O(MathLog, math_log, Math, log, 1)       \
+    O(MathPow, math_pow, Math, pow, 2)       \
+    O(MathFloor, math_floor, Math, floor, 1) \
     O(MathSqrt, math_sqrt, Math, sqrt, 1)
 
 enum class Builtin {