jscript: Added Math_SQRT2 implementation and tests.

dlls/jscript/math.c

@@ -120,8 +120,8 @@ static HRESULT Math_PI(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp
 static HRESULT Math_SQRT2(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,
         VARIANT *retv, jsexcept_t *ei, IServiceProvider *sp)
 {
-    FIXME("\n");
-    return E_NOTIMPL;
+    TRACE("\n");
+    return math_constant(M_SQRT2, flags, retv);
 }
 
 static HRESULT Math_SQRT1_2(DispatchEx *dispex, LCID lcid, WORD flags, DISPPARAMS *dp,

dlls/jscript/tests/api.js

@@ -675,4 +675,9 @@ ok(Math.floor(Math.LN2*100) === 69, "Math.LN2 = " + Math.LN2);
 Math.LN2 = "test";
 ok(Math.floor(Math.LN2*100) === 69, "modified Math.LN2 = " + Math.LN2);
 
+ok(typeof(Math.SQRT2) === "number", "typeof(Math.SQRT2) = " + typeof(Math.SQRT2));
+ok(Math.floor(Math.SQRT2*100) === 141, "Math.SQRT2 = " + Math.SQRT2);
+Math.SQRT2 = "test";
+ok(Math.floor(Math.SQRT2*100) === 141, "modified Math.SQRT2 = " + Math.SQRT2);
+
 reportSuccess();