Rework the way we handle constructor decls to be less hacky and fix PR3948 completely.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70516 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Parse/ParseDecl.cpp b/lib/Parse/ParseDecl.cpp
index 59e9ed6..8b81c31 100644
--- a/lib/Parse/ParseDecl.cpp
+++ b/lib/Parse/ParseDecl.cpp
@@ -1982,7 +1982,17 @@
 
       if (Tok.is(tok::identifier)) {
         assert(Tok.getIdentifierInfo() && "Not an identifier?");
-        D.SetIdentifier(Tok.getIdentifierInfo(), Tok.getLocation());
+
+        // If this identifier is the name of the current class, it's a
+        // constructor name. 
+        if (!D.getDeclSpec().hasTypeSpecifier() &&
+            Actions.isCurrentClassName(*Tok.getIdentifierInfo(),CurScope)) {
+          D.setConstructor(Actions.getTypeName(*Tok.getIdentifierInfo(),
+                                               Tok.getLocation(), CurScope),
+                           Tok.getLocation());
+        // This is a normal identifier.
+        } else
+          D.SetIdentifier(Tok.getIdentifierInfo(), Tok.getLocation());
         ConsumeToken();
         goto PastIdentifier;
       } else if (Tok.is(tok::annot_template_id)) {
@@ -2092,15 +2102,6 @@
           break;
       }
       ParseFunctionDeclarator(ConsumeParen(), D);
-      
-      // If this identifier is the name of the current class, it's a
-      // constructor name. 
-      if (IdentifierInfo *II = D.getIdentifier()) {
-        if (Actions.isCurrentClassName(*II, CurScope))
-        D.setConstructor(Actions.getTypeName(*II, D.getIdentifierLoc(), 
-                                             CurScope), 
-                         D.getIdentifierLoc());
-      } 
     } else if (Tok.is(tok::l_square)) {
       ParseBracketDeclarator(D);
     } else {