AST: Canonicalize version numbers in @_originallyDefinedIn attributes.

Author: tshortli

lib/AST/Attr.cpp

@@ -2375,16 +2375,13 @@ static StringRef getLinkerModuleName(StringRef OriginalModuleName) {
 }
 
 OriginallyDefinedInAttr::OriginallyDefinedInAttr(
-    SourceLoc AtLoc, SourceRange Range,
-    StringRef OriginalModuleName,
-    PlatformKind Platform,
-    const llvm::VersionTuple MovedVersion, bool Implicit)
-  : DeclAttribute(DeclAttrKind::OriginallyDefinedIn, AtLoc, Range,
-                  Implicit),
-    ManglingModuleName(getManglingModuleName(OriginalModuleName)),
-    LinkerModuleName(getLinkerModuleName(OriginalModuleName)),
-    Platform(Platform),
-    MovedVersion(MovedVersion) {}
+    SourceLoc AtLoc, SourceRange Range, StringRef OriginalModuleName,
+    PlatformKind Platform, const llvm::VersionTuple MovedVersion, bool Implicit)
+    : DeclAttribute(DeclAttrKind::OriginallyDefinedIn, AtLoc, Range, Implicit),
+      ManglingModuleName(getManglingModuleName(OriginalModuleName)),
+      LinkerModuleName(getLinkerModuleName(OriginalModuleName)),
+      Platform(Platform),
+      MovedVersion(canonicalizePlatformVersion(Platform, MovedVersion)) {}
 
 std::optional<OriginallyDefinedInAttr::ActiveVersion>
 OriginallyDefinedInAttr::isActivePlatform(const ASTContext &ctx) const {