Implement i128/u128 to JsBigInt conversions

boa_engine/src/bigint.rs

@@ -407,7 +407,22 @@ impl From<usize> for JsBigInt {
         }
     }
 }
-
+impl From<i128> for JsBigInt {
+    #[inline]
+    fn from(value: i128) -> Self {
+        Self {
+            inner: Rc::new(RawBigInt::from(value)),
+        }
+    }
+}
+impl From<u128> for JsBigInt {
+    #[inline]
+    fn from(value: u128) -> Self {
+        Self {
+            inner: Rc::new(RawBigInt::from(value)),
+        }
+    }
+}
 /// The error indicates that the conversion from [`f64`] to [`JsBigInt`] failed.
 #[derive(Debug, Clone, Copy, Hash, PartialEq, Eq, PartialOrd, Ord)]
 pub struct TryFromF64Error;

boa_engine/src/value/mod.rs

@@ -1014,6 +1014,18 @@ impl From<i64> for Numeric {
         Self::BigInt(value.into())
     }
 }
+impl From<i128> for Numeric {
+    #[inline]
+    fn from(value: i128) -> Self {
+        Self::BigInt(value.into())
+    }
+}
+impl From<u128> for Numeric {
+    #[inline]
+    fn from(value: u128) -> Self {
+        Self::BigInt(value.into())
+    }
+}
 
 impl From<i32> for Numeric {
     #[inline]