Use table's index type when parsing element segments

scripts/test/shared.py

@@ -404,7 +404,6 @@ def get_tests(test_dir, extensions=[], recursive=False):
 SPEC_TESTSUITE_TESTS_TO_SKIP = [
     'array_new_elem.wast',  # Failure to parse element segment item abbreviation
     'binary.wast',   # Missing data count section validation
-    'call_indirect64.wast',  # Failure to parse element segment abbreviation
     'comments.wast',  # Issue with carriage returns being treated as newlines
     'const.wast',    # Hex float constant not recognized as out of range
     'conversions.wast',  # Promoted NaN should be canonical

src/parser/context-decls.cpp

@@ -122,7 +122,7 @@ Result<> ParseDeclsCtx::addImplicitElems(TypeT, ElemListT&& elems) {
   auto& table = *wasm.tables.back();
   auto e = std::make_unique<ElementSegment>();
   e->table = table.name;
-  e->offset = Builder(wasm).makeConstPtr(0, Type::i32);
+  e->offset = Builder(wasm).makeConstPtr(0, table.addressType);
   e->name = Names::getValidElementSegmentName(wasm, "implicit-elem");
   wasm.addElementSegment(std::move(e));