Merge the «declared here» diagnostics for Identifier and DeclName (#23703)

Author: AnthonyLatsis

include/swift/AST/DiagnosticsSema.def

@@ -39,12 +39,8 @@
 
 NOTE(kind_declname_declared_here,none,
      "%0 %1 declared here", (DescriptiveDeclKind, DeclName))
-NOTE(kind_identifier_declared_here,none,
-     "%0 %1 declared here", (DescriptiveDeclKind, Identifier))
 NOTE(decl_declared_here,none,
      "%0 declared here", (DeclName))
-NOTE(identifier_declared_here,none,
-     "%0 declared here", (Identifier))
 NOTE(kind_declared_here,none,
      "%0 declared here", (DescriptiveDeclKind))
 NOTE(implicit_member_declared_here,none,

lib/Sema/CSGen.cpp

@@ -1616,7 +1616,7 @@ namespace {
                         false)
               .highlight(SourceRange(expr->getLAngleLoc(),
                                      expr->getRAngleLoc()));
-            tc.diagnose(bgt->getDecl(), diag::kind_identifier_declared_here,
+            tc.diagnose(bgt->getDecl(), diag::kind_declname_declared_here,
                         DescriptiveDeclKind::GenericType, bgt->getDecl()->getName());
             return Type();
           }

lib/Sema/TypeCheckDecl.cpp

@@ -597,7 +597,7 @@ static void checkCircularity(TypeChecker &tc, T *decl,
     tc.diagnose(decl->getLoc(), circularDiag,
                 (*cycleStart)->getName());
     for (auto i = cycleStart + 1, iEnd = path.end(); i != iEnd; ++i) {
-      tc.diagnose(*i, diag::kind_identifier_declared_here,
+      tc.diagnose(*i, diag::kind_declname_declared_here,
                   declKind, (*i)->getName());
     }
 

lib/Sema/TypeCheckDeclObjC.cpp

@@ -1378,7 +1378,7 @@ IsObjCRequest::evaluate(Evaluator &evaluator, ValueDecl *VD) const {
           proto->diagnose(diag::objc_protocol_inherits_non_objc_protocol,
                           proto->getDeclaredType(),
                           inherited->getDeclaredType());
-          inherited->diagnose(diag::kind_identifier_declared_here,
+          inherited->diagnose(diag::kind_declname_declared_here,
                               DescriptiveDeclKind::Protocol,
                               inherited->getName());
           isObjC = None;

lib/Sema/TypeCheckStmt.cpp

@@ -923,7 +923,7 @@ class StmtChecker : public StmtVisitor<StmtChecker, Stmt*> {
         .fixItReplace(SourceRange(targetLoc),
                       corrections.begin()->Value->getLabelInfo().Name.str());
       tc.diagnose(corrections.begin()->Value->getLabelInfo().Loc,
-                  diag::identifier_declared_here,
+                  diag::decl_declared_here,
                   corrections.begin()->Value->getLabelInfo().Name);
     } else {
       // If we have multiple corrections or none, produce a generic diagnostic

lib/Sema/TypeCheckType.cpp

@@ -708,7 +708,7 @@ Type TypeChecker::applyGenericArguments(Type type,
                      genericParams->size(), genericArgs.size(),
                      genericArgs.size() < genericParams->size())
           .highlight(generic->getAngleBrackets());
-      decl->diagnose(diag::kind_identifier_declared_here,
+      decl->diagnose(diag::kind_declname_declared_here,
                      DescriptiveDeclKind::GenericType, decl->getName());
     }
     return ErrorType::get(ctx);
@@ -898,7 +898,7 @@ static void diagnoseUnboundGenericType(Type ty, SourceLoc loc) {
         diag.fixItInsertAfter(loc, genericArgsToAdd);
     }
   }
-  unbound->getDecl()->diagnose(diag::kind_identifier_declared_here,
+  unbound->getDecl()->diagnose(diag::kind_declname_declared_here,
                                DescriptiveDeclKind::GenericType,
                                unbound->getDecl()->getName());
 }