Implement instantiation of AsmStmts (Crazy, I know)

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94361 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/Stmt.cpp b/lib/AST/Stmt.cpp
index 104e336..821bcb5 100644
--- a/lib/AST/Stmt.cpp
+++ b/lib/AST/Stmt.cpp
@@ -338,7 +338,7 @@
 
 AsmStmt::AsmStmt(SourceLocation asmloc, bool issimple, bool isvolatile,
                  bool msasm, unsigned numoutputs, unsigned numinputs,
-                 std::string *names, StringLiteral **constraints,
+                 const std::string *names, StringLiteral **constraints,
                  Expr **exprs, StringLiteral *asmstr, unsigned numclobbers,
                  StringLiteral **clobbers, SourceLocation rparenloc)
   : Stmt(AsmStmtClass), AsmLoc(asmloc), RParenLoc(rparenloc), AsmStr(asmstr)