Reland [wasm] Stage wasm-bigint

There was no problem with the original CL. I just had a problem with
my local git branches.

Original message:

The implementation on wasm-bigint has been done, as far as I can tell.
There are no spec tests yet, only an out-dated copy of the original
spec tests which don't pass anymore. Therefore I disabled all the tests
for now and created a tracking bug at https://crbug.com/v8/9673.

TBR=adamk@chromium.org

Bug: v8:7741, v8:9673
Change-Id: Ida7ccda4547cf3fdcdff151d8b02946b7aa534ca
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1787420Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63575}

src/wasm/wasm-feature-flags.h

@@ -10,12 +10,12 @@
   V(eh, "exception handling opcodes", false)      \
   V(threads, "thread opcodes", false)             \
   V(simd, "SIMD opcodes", false)                  \
-  V(bigint, "JS BigInt support", false)           \
   V(return_call, "return call opcodes", false)    \
   V(compilation_hints, "compilation hints section", false)
 
 #define FOREACH_WASM_STAGING_FEATURE_FLAG(V) \
   V(anyref, "anyref opcodes", false)         \
+  V(bigint, "JS BigInt support", false)      \
   V(type_reflection, "wasm type reflection in JS", false)
 
 #define FOREACH_WASM_SHIPPED_FEATURE_FLAG(V)                          \

test/wasm-js/testcfg.py

@@ -26,7 +26,12 @@ proposal_flags = [{
                     'name': 'js-types',
                     'flags': ['--experimental-wasm-type-reflection',
                               '--no-experimental-wasm-bulk-memory']
-                  }]
+                  },
+                  {
+                    'name': 'JS-BigInt-integration',
+                    'flags': ['--experimental-wasm-bigint']
+                  },
+                  ]
 
 
 class TestLoader(testsuite.JSTestLoader):

test/wasm-js/tests.tar.gz.sha1

-26e59563060bd6de4adbb4021684e8cf38fe71c8
\ No newline at end of file
+1e0e2435efac858f3269de548d7c795fb6173ca8
\ No newline at end of file

test/wasm-js/wasm-js.status

@@ -7,6 +7,9 @@
   # https://bugs.chromium.org/p/v8/issues/detail?id=8633
   'limits': [SKIP],
   'proposals/reference-types/limits': [SKIP],
+  # TODO(v8:9673): Enable these spec tests once they exist, and the out-dated
+  # tests have been removed.
+  'proposals/JS-BigInt-integration/*': [SKIP],
 }], # ALWAYS
 
 ['arch == s390 or arch == s390x or system == aix', {

test/wasm-spec-tests/testcfg.py

@@ -20,7 +20,12 @@ proposal_flags = [{
                     'name': 'js-types',
                     'flags': ['--experimental-wasm-type-reflection',
                               '--no-experimental-wasm-bulk-memory']
-                  }]
+                  },
+                  {
+                    'name': 'JS-BigInt-integration',
+                    'flags': ['--experimental-wasm-bigint']
+                  },
+                  ]
 
 class TestLoader(testsuite.JSTestLoader):
   pass

test/wasm-spec-tests/tests.tar.gz.sha1

-d9e649f4ea6da6bd18999795201c2bd138c0d786
\ No newline at end of file
+088e8722b3fe99ea3a67a9852e787f461f348d0b
\ No newline at end of file

test/wasm-spec-tests/wasm-spec-tests.status

@@ -23,6 +23,9 @@
   'proposals/js-types/exports': [FAIL],
   'proposals/js-types/globals': [FAIL],
   'proposals/js-types/linking': [FAIL],
+  # TODO(v8:9673): Enable these spec tests once they exist, and the out-dated
+  # tests have been removed.
+  'proposals/JS-BigInt-integration/*': [SKIP],
 }],  # ALWAYS
 
 ['arch == mipsel or arch == mips64el or arch == mips or arch == mips64', {

tools/wasm/update-wasm-spec-tests.sh

@@ -71,7 +71,7 @@ log_and_run cp -r ${TMP_DIR}/spec/test/js-api/* ${JS_API_TEST_DIR}/tests
 # Generate the proposal tests.
 ###############################################################################
 
-repos='bulk-memory-operations reference-types js-types'
+repos='bulk-memory-operations reference-types js-types JS-BigInt-integration'
 
 for repo in ${repos}; do
   echo "Process ${repo}"