Bug 253533 – [SOUP] HTTP/2 status text WPTs fail on WPE and GTK

• Status: NEW
• Component: WebKitGTK

[Ben Nham]

These WPTs fail when we fix the WPT test runner to actually run the H2 test cases over H2 (253043):

imported/w3c/web-platform-tests/fetch/api/basic/status.h2.any-expected.txt
imported/w3c/web-platform-tests/fetch/api/basic/status.h2.any.worker-expected.txt
imported/w3c/web-platform-tests/xhr/status.h2.window-expected.txt

Example diff:

```
--- /home/ews/worker/WPE-WK2-Tests-EWS/build/layout-test-results/imported/w3c/web-platform-tests/fetch/api/basic/status.h2.any-expected.txt
+++ /home/ews/worker/WPE-WK2-Tests-EWS/build/layout-test-results/imported/w3c/web-platform-tests/fetch/api/basic/status.h2.any-actual.txt
@@ -1,9 +1,9 @@
 
-FAIL statusText over H2 for status 200 should be the empty string assert_equals: statusText should be the empty string expected "" but got "OMG"
-FAIL statusText over H2 for status 210 should be the empty string assert_equals: statusText should be the empty string expected "" but got "OMG"
-FAIL statusText over H2 for status 400 should be the empty string assert_equals: statusText should be the empty string expected "" but got "OMG"
-FAIL statusText over H2 for status 404 should be the empty string assert_equals: statusText should be the empty string expected "" but got "OMG"
-FAIL statusText over H2 for status 410 should be the empty string assert_equals: statusText should be the empty string expected "" but got "OMG"
-FAIL statusText over H2 for status 500 should be the empty string assert_equals: statusText should be the empty string expected "" but got "OMG"
-FAIL statusText over H2 for status 502 should be the empty string assert_equals: statusText should be the empty string expected "" but got "OMG"
+FAIL statusText over H2 for status 200 should be the empty string assert_equals: statusText should be the empty string expected "" but got "OK"
+FAIL statusText over H2 for status 210 should be the empty string assert_equals: statusText should be the empty string expected "" but got "Unknown Error"
+FAIL statusText over H2 for status 400 should be the empty string assert_equals: statusText should be the empty string expected "" but got "Bad Request"
+FAIL statusText over H2 for status 404 should be the empty string assert_equals: statusText should be the empty string expected "" but got "Not Found"
+FAIL statusText over H2 for status 410 should be the empty string assert_equals: statusText should be the empty string expected "" but got "Gone"
+FAIL statusText over H2 for status 500 should be the empty string assert_equals: statusText should be the empty string expected "" but got "Internal Server Error"
+FAIL statusText over H2 for status 502 should be the empty string assert_equals: statusText should be the empty string expected "" but got "Bad Gateway"
```

[Ben Nham]

Looks like Joseph's fix for this issue only worked for Cocoa platforms and not for other platforms: https://github.com/WebKit/WebKit/commit/93719e196089a762755edc915cbb597f32112394