[builtins] Migrate Number constructor similar to String constructor.

test/mjsunit/stack-traces.js

Index: test/mjsunit/stack-traces.js
diff --git a/test/mjsunit/stack-traces.js b/test/mjsunit/stack-traces.js
index 94868e4a7656bb5339129cbebaf4bb5b3d14e78b..1123c0bc1d2a98ca17daee0c8fb76d84e585e779 100644
--- a/test/mjsunit/stack-traces.js
+++ b/test/mjsunit/stack-traces.js
@@ -291,11 +291,9 @@ testUnintendedCallerCensorship();
 testErrorsDuringFormatting();
 
 testTraceNativeConversion(String);  // Does ToString on argument.
-testTraceNativeConversion(Number);  // Does ToNumber on argument.
 testTraceNativeConversion(RegExp);  // Does ToString on argument.
 
 testTraceNativeConstructor(String);  // Does ToString on argument.
-testTraceNativeConstructor(Number);  // Does ToNumber on argument.
 testTraceNativeConstructor(RegExp);  // Does ToString on argument.
 
 // Omitted because QuickSort has builtins object as receiver, and is non-native