Implement DOMPoint and DOMPointReadOnly

Passes some but not all WPT tests. One failure is caused by an issue in codegen for the `DOMPointInit` dictionary, the others by outdated tests: Gecko implements an old version of the spec that overloaded the `DOMPoint` constructor to optionally take an object as the first argument, and made `DOMPointReadOnly` non-constructible.

tests/wpt/metadata-css/css21_dev/html4/color-applies-to-001.htm.ini

@@ -1,4 +1,4 @@
 [color-applies-to-001.htm]
   type: reftest
   expected:
-    if (os == "mac"): FAIL
+    if os == "mac": FAIL

tests/wpt/metadata-css/css21_dev/html4/color-applies-to-002.htm.ini

@@ -1,4 +1,4 @@
 [color-applies-to-002.htm]
   type: reftest
   expected:
-    if (os == "mac"): FAIL
+    if os == "mac": FAIL

tests/wpt/metadata-css/css21_dev/html4/color-applies-to-003.htm.ini

@@ -1,4 +1,4 @@
 [color-applies-to-003.htm]
   type: reftest
   expected:
-    if (os == "mac"): FAIL
+    if os == "mac": FAIL

tests/wpt/metadata-css/css21_dev/html4/color-applies-to-004.htm.ini

@@ -1,4 +1,4 @@
 [color-applies-to-004.htm]
   type: reftest
   expected:
-    if (os == "mac"): FAIL
+    if os == "mac": FAIL

tests/wpt/metadata-css/css21_dev/html4/color-applies-to-005.htm.ini

@@ -1,4 +1,4 @@
 [color-applies-to-005.htm]
   type: reftest
   expected:
-    if (os == "mac"): FAIL
+    if os == "mac": FAIL

tests/wpt/metadata-css/css21_dev/html4/color-applies-to-006.htm.ini

@@ -1,4 +1,4 @@
 [color-applies-to-006.htm]
   type: reftest
   expected:
-    if (os == "mac"): FAIL
+    if os == "mac": FAIL

tests/wpt/metadata-css/css21_dev/html4/color-applies-to-013.htm.ini

@@ -1,4 +1,4 @@
 [color-applies-to-013.htm]
   type: reftest
   expected:
-    if (os == "mac"): FAIL
+    if os == "mac": FAIL

tests/wpt/metadata-css/css21_dev/html4/color-applies-to-015.htm.ini

@@ -1,4 +1,4 @@
 [color-applies-to-015.htm]
   type: reftest
   expected:
-    if (os == "mac"): FAIL
+    if os == "mac": FAIL

tests/wpt/metadata-css/css21_dev/html4/content-177.htm.ini

@@ -1,5 +1,5 @@
 [content-177.htm]
   type: reftest
   expected:
-    if (os == "mac"): PASS
+    if os == "mac": PASS
     FAIL

tests/wpt/metadata-css/css21_dev/html4/display-008.htm.ini

@@ -1,4 +1,4 @@
 [display-008.htm]
   type: reftest
   expected:
-    if (os == "mac"): FAIL
+    if os == "mac": FAIL

tests/wpt/metadata-css/css21_dev/html4/display-009.htm.ini

@@ -1,4 +1,4 @@
 [display-009.htm]
   type: reftest
   expected:
-    if (os == "mac"): FAIL
+    if os == "mac": FAIL

tests/wpt/metadata-css/css21_dev/html4/float-applies-to-008.htm.ini

@@ -1,4 +1,4 @@
 [float-applies-to-008.htm]
   type: reftest
   expected:
-    if (os == "mac"): FAIL
+    if os == "mac": FAIL

tests/wpt/metadata-css/css21_dev/html4/font-size-001.htm.ini

@@ -1,5 +1,5 @@
 [font-size-001.htm]
   type: reftest
   expected:
-    if (os == "mac"): PASS
+    if os == "mac": PASS
     FAIL

tests/wpt/metadata-css/css21_dev/html4/font-size-002.htm.ini

@@ -1,5 +1,5 @@
 [font-size-002.htm]
   type: reftest
   expected:
-    if (os == "mac"): PASS
+    if os == "mac": PASS
     FAIL

tests/wpt/metadata-css/css21_dev/html4/font-size-004.htm.ini

@@ -1,5 +1,5 @@
 [font-size-004.htm]
   type: reftest
   expected:
-    if (os == "mac"): PASS
+    if os == "mac": PASS
     FAIL

tests/wpt/metadata-css/css21_dev/html4/font-size-005.htm.ini

@@ -1,5 +1,5 @@
 [font-size-005.htm]
   type: reftest
   expected:
-    if (os == "mac"): PASS
+    if os == "mac": PASS
     FAIL

tests/wpt/metadata-css/css21_dev/html4/font-size-089.htm.ini

@@ -1,5 +1,5 @@
 [font-size-089.htm]
   type: reftest
   expected:
-    if (os == "mac"): PASS
+    if os == "mac": PASS
     FAIL

tests/wpt/metadata-css/css21_dev/html4/font-size-090.htm.ini

@@ -1,5 +1,5 @@
 [font-size-090.htm]
   type: reftest
   expected:
-    if (os == "mac"): PASS
+    if os == "mac": PASS
     FAIL

tests/wpt/metadata-css/css21_dev/html4/font-size-092.htm.ini

@@ -1,5 +1,5 @@
 [font-size-092.htm]
   type: reftest
   expected:
-    if (os == "mac"): PASS
+    if os == "mac": PASS
     FAIL

tests/wpt/metadata-css/css21_dev/html4/font-size-093.htm.ini

@@ -1,5 +1,5 @@
 [font-size-093.htm]
   type: reftest
   expected:
-    if (os == "mac"): PASS
+    if os == "mac": PASS
     FAIL

tests/wpt/metadata-css/css21_dev/html4/font-size-100.htm.ini

@@ -1,5 +1,5 @@
 [font-size-100.htm]
   type: reftest
   expected:
-    if (os == "mac"): PASS
+    if os == "mac": PASS
     FAIL

tests/wpt/metadata-css/css21_dev/html4/font-size-101.htm.ini

@@ -1,5 +1,5 @@
 [font-size-101.htm]
   type: reftest
   expected:
-    if (os == "mac"): PASS
+    if os == "mac": PASS
     FAIL

tests/wpt/metadata-css/css21_dev/html4/font-size-102.htm.ini

@@ -1,5 +1,5 @@
 [font-size-102.htm]
   type: reftest
   expected:
-    if (os == "mac"): PASS
+    if os == "mac": PASS
     FAIL

tests/wpt/metadata-css/css21_dev/html4/inline-block-zorder-003.htm.ini

@@ -1,4 +1,4 @@
 [inline-block-zorder-003.htm]
   type: reftest
   expected:
-    if (os == "mac"): FAIL
+    if os == "mac": FAIL

tests/wpt/metadata-css/css21_dev/html4/inline-formatting-context-004.htm.ini

@@ -1,4 +1,4 @@
 [inline-formatting-context-004.htm]
   type: reftest
   expected:
-    if (os == "mac"): FAIL
+    if os == "mac": FAIL

tests/wpt/metadata-css/css21_dev/html4/inline-formatting-context-005.htm.ini

@@ -1,4 +1,4 @@
 [inline-formatting-context-005.htm]
   type: reftest
   expected:
-    if (os == "mac"): FAIL
+    if os == "mac": FAIL

tests/wpt/metadata-css/css21_dev/html4/line-height-121.htm.ini

@@ -1,5 +1,5 @@
 [line-height-121.htm]
   type: reftest
   expected:
-    if (os == "mac"): PASS
+    if os == "mac": PASS
     FAIL

tests/wpt/metadata-css/css21_dev/html4/line-height-127.htm.ini

@@ -1,5 +1,5 @@
 [line-height-127.htm]
   type: reftest
   expected:
-    if (os == "mac"): PASS
+    if os == "mac": PASS
     FAIL