Move negative length checks from Dart into the native.

runtime/lib/typed_data.dart

Index: runtime/lib/typed_data.dart
===================================================================
--- runtime/lib/typed_data.dart	(revision 22079)
+++ runtime/lib/typed_data.dart	(working copy)
@@ -579,10 +579,6 @@
   // Factory constructors.
 
   factory _Int8Array(int length) {
-    if (length < 0) {
-      String message = "$length must be greater than 0";
-      throw new ArgumentError(message);
-    }
     return _new(length);
   }
 
@@ -637,10 +633,6 @@
   // Factory constructors.
 
   factory _Uint8Array(int length) {
-    if (length < 0) {
-      String message = "$length must be greater than 0";
-      throw new ArgumentError(message);
-    }
     return _new(length);
   }
 
@@ -693,10 +685,6 @@
   // Factory constructors.
 
   factory _Uint8ClampedArray(int length) {
-    if (length < 0) {
-      String message = "$length must be greater than 0";
-      throw new ArgumentError(message);
-    }
     return _new(length);
   }
 
@@ -751,10 +739,6 @@
   // Factory constructors.
 
   factory _Int16Array(int length) {
-    if (length < 0) {
-      String message = "$length must be greater than 0";
-      throw new ArgumentError(message);
-    }
     return _new(length);
   }
 
@@ -818,10 +802,6 @@
   // Factory constructors.
 
   factory _Uint16Array(int length) {
-    if (length < 0) {
-      String message = "$length must be greater than 0";
-      throw new ArgumentError(message);
-    }
     return _new(length);
   }
 
@@ -885,10 +865,6 @@
   // Factory constructors.
 
   factory _Int32Array(int length) {
-    if (length < 0) {
-      String message = "$length must be greater than 0";
-      throw new ArgumentError(message);
-    }
     return _new(length);
   }
 
@@ -952,10 +928,6 @@
   // Factory constructors.
 
   factory _Uint32Array(int length) {
-    if (length < 0) {
-      String message = "$length must be greater than 0";
-      throw new ArgumentError(message);
-    }
     return _new(length);
   }
 
@@ -1019,10 +991,6 @@
   // Factory constructors.
 
   factory _Int64Array(int length) {
-    if (length < 0) {
-      String message = "$length must be greater than 0";
-      throw new ArgumentError(message);
-    }
     return _new(length);
   }
 
@@ -1086,10 +1054,6 @@
   // Factory constructors.
 
   factory _Uint64Array(int length) {
-    if (length < 0) {
-      String message = "$length must be greater than 0";
-      throw new ArgumentError(message);
-    }
     return _new(length);
   }
 
@@ -1153,10 +1117,6 @@
   // Factory constructors.
 
   factory _Float32Array(int length) {
-    if (length < 0) {
-      String message = "$length must be greater than 0";
-      throw new ArgumentError(message);
-    }
     return _new(length);
   }
 
@@ -1220,10 +1180,6 @@
   // Factory constructors.
 
   factory _Float64Array(int length) {
-    if (length < 0) {
-      String message = "$length must be greater than 0";
-      throw new ArgumentError(message);
-    }
     return _new(length);
   }
 
@@ -1286,10 +1242,6 @@
   // Factory constructors.
 
   factory _Float32x4Array(int length) {
-    if (length < 0) {
-      String message = "$length must be greater than 0";
-      throw new ArgumentError(message);
-    }
     return _new(length);
   }
 
@@ -1351,10 +1303,6 @@
   // Factory constructors.
 
   factory _ExternalInt8Array(int length) {
-    if (length < 0) {
-      String message = "$length must be greater than 0";
-      throw new ArgumentError(message);
-    }
     return _new(length);
   }
 
@@ -1401,10 +1349,6 @@
   // Factory constructors.
 
   factory _ExternalUint8Array(int length) {
-    if (length < 0) {
-      String message = "$length must be greater than 0";
-      throw new ArgumentError(message);
-    }
     return _new(length);
   }
 
@@ -1452,10 +1396,6 @@
   // Factory constructors.
 
   factory _ExternalUint8ClampedArray(int length) {
-    if (length < 0) {
-      String message = "$length must be greater than 0";
-      throw new ArgumentError(message);
-    }
     return _new(length);
   }
 
@@ -1503,10 +1443,6 @@
   // Factory constructors.
 
   factory _ExternalInt16Array(int length) {
-    if (length < 0) {
-      String message = "$length must be greater than 0";
-      throw new ArgumentError(message);
-    }
     return _new(length);
   }
 
@@ -1562,10 +1498,6 @@
   // Factory constructors.
 
   factory _ExternalUint16Array(int length) {
-    if (length < 0) {
-      String message = "$length must be greater than 0";
-      throw new ArgumentError(message);
-    }
     return _new(length);
   }
 
@@ -1621,10 +1553,6 @@
   // Factory constructors.
 
   factory _ExternalInt32Array(int length) {
-    if (length < 0) {
-      String message = "$length must be greater than 0";
-      throw new ArgumentError(message);
-    }
     return _new(length);
   }
 
@@ -1680,10 +1608,6 @@
   // Factory constructors.
 
   factory _ExternalUint32Array(int length) {
-    if (length < 0) {
-      String message = "$length must be greater than 0";
-      throw new ArgumentError(message);
-    }
     return _new(length);
   }
 
@@ -1739,10 +1663,6 @@
   // Factory constructors.
 
   factory _ExternalInt64Array(int length) {
-    if (length < 0) {
-      String message = "$length must be greater than 0";
-      throw new ArgumentError(message);
-    }
     return _new(length);
   }
 
@@ -1798,10 +1718,6 @@
   // Factory constructors.
 
   factory _ExternalUint64Array(int length) {
-    if (length < 0) {
-      String message = "$length must be greater than 0";
-      throw new ArgumentError(message);
-    }
     return _new(length);
   }
 
@@ -1857,10 +1773,6 @@
   // Factory constructors.
 
   factory _ExternalFloat32Array(int length) {
-    if (length < 0) {
-      String message = "$length must be greater than 0";
-      throw new ArgumentError(message);
-    }
     return _new(length);
   }
 
@@ -1916,10 +1828,6 @@
   // Factory constructors.
 
   factory _ExternalFloat64Array(int length) {
-    if (length < 0) {
-      String message = "$length must be greater than 0";
-      throw new ArgumentError(message);
-    }
     return _new(length);
   }
 
@@ -1975,10 +1883,6 @@
   // Factory constructors.
 
   factory _ExternalFloat32x4Array(int length) {
-    if (length < 0) {
-      String message = "$length must be greater than 0";
-      throw new ArgumentError(message);
-    }
     return _new(length);
   }