[Support] Use StringRef::operator== instead of StringRef::equals (NFC) (#91042)

I'm planning to remove StringRef::equals in favor of
StringRef::operator==.

- StringRef::operator== outnumbers StringRef::equals by a factor of 25
  under llvm/ in terms of their usage.

- The elimination of StringRef::equals brings StringRef closer to
  std::string_view, which has operator== but not equals.

- S == "foo" is more readable than S.equals("foo"), especially for
  !Long.Expression.equals("str") vs Long.Expression != "str".

1 files changed, 2 insertions, 2 deletions

diff --git a/llvm/lib/Support/APFloat.cpp b/llvm/lib/Support/APFloat.cpp
index 0a4f5ac..64a7e0c 100644
--- a/llvm/lib/Support/APFloat.cpp
+++ b/llvm/lib/Support/APFloat.cpp
@@ -3123,7 +3123,7 @@ bool IEEEFloat::convertFromStringSpecials(StringRef str) {
   if (str.size() < MIN_NAME_SIZE)
     return false;
 
-  if (str.equals("inf") || str.equals("INFINITY") || str.equals("+Inf")) {
+  if (str == "inf" || str == "INFINITY" || str == "+Inf") {
     makeInf(false);
     return true;
   }
@@ -3134,7 +3134,7 @@ bool IEEEFloat::convertFromStringSpecials(StringRef str) {
     if (str.size() < MIN_NAME_SIZE)
       return false;
 
-    if (str.equals("inf") || str.equals("INFINITY") || str.equals("Inf")) {
+    if (str == "inf" || str == "INFINITY" || str == "Inf") {
       makeInf(true);
       return true;
     }