Fix for PR5872. Add static specifier and const/volatile qualifiers to member functions in __PRETTY_FUNCTION__ predefined expressions.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@92171 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/Expr.cpp b/lib/AST/Expr.cpp
index 960d83d..a31a7f5 100644
--- a/lib/AST/Expr.cpp
+++ b/lib/AST/Expr.cpp
@@ -174,6 +174,8 @@
     if (const CXXMethodDecl *MD = dyn_cast<CXXMethodDecl>(FD)) {
       if (MD->isVirtual())
         Out << "virtual ";
+      if (MD->isStatic())
+        Out << "static ";
     }
 
     PrintingPolicy Policy(Context.getLangOptions());
@@ -203,6 +205,14 @@
     }
     Proto += ")";
 
+    if (const CXXMethodDecl *MD = dyn_cast<CXXMethodDecl>(FD)) {
+      Qualifiers ThisQuals = Qualifiers::fromCVRMask(MD->getTypeQualifiers());
+      if (ThisQuals.hasConst())
+        Proto += " const";
+      if (ThisQuals.hasVolatile())
+        Proto += " volatile";
+    }
+
     if (!isa<CXXConstructorDecl>(FD) && !isa<CXXDestructorDecl>(FD))
       AFT->getResultType().getAsStringInternal(Proto, Policy);