Demangle operator co_await (aw).

PiperOrigin-RevId: 641291188
Change-Id: I02f6bae62b05c8964a3b6e8f78299061ce57e01a

absl/debugging/internal/demangle.cc

@@ -52,6 +52,8 @@ static const AbbrevPair kOperatorList[] = {
     {"dl", "delete", 1},
     {"dl", "delete", 1},
     {"da", "delete[]", 1},
     {"da", "delete[]", 1},
 
 
+    {"aw", "co_await", 1},
+
     {"ps", "+", 1},  // "positive"
     {"ps", "+", 1},  // "positive"
     {"ng", "-", 1},  // "negative"
     {"ng", "-", 1},  // "negative"
     {"ad", "&", 1},  // "address-of"
     {"ad", "&", 1},  // "address-of"

absl/debugging/internal/demangle_test.cc

@@ -1087,6 +1087,14 @@ TEST(Demangle, Spaceship) {
   EXPECT_STREQ("g<>()", tmp);
   EXPECT_STREQ("g<>()", tmp);
 }
 }
 
 
+TEST(Demangle, CoAwait) {
+  char tmp[80];
+
+  // ns::Awaitable::operator co_await() const
+  EXPECT_TRUE(Demangle("_ZNK2ns9AwaitableawEv", tmp, sizeof(tmp)));
+  EXPECT_STREQ("ns::Awaitable::operator co_await()", tmp);
+}
+
 TEST(Demangle, VendorExtendedExpressions) {
 TEST(Demangle, VendorExtendedExpressions) {
   char tmp[80];
   char tmp[80];