Add StringLiteral::getString -> StringRef.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@82514 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/Expr.cpp b/lib/AST/Expr.cpp
index 6e46c4f..9d2d46f 100644
--- a/lib/AST/Expr.cpp
+++ b/lib/AST/Expr.cpp
@@ -159,14 +159,14 @@
   Expr::DoDestroy(C);
 }
 
-void StringLiteral::setStrData(ASTContext &C, const char *Str, unsigned Len) {
+void StringLiteral::setString(ASTContext &C, llvm::StringRef Str) {
   if (StrData)
     C.Deallocate(const_cast<char*>(StrData));
 
-  char *AStrData = new (C, 1) char[Len];
-  memcpy(AStrData, Str, Len);
+  char *AStrData = new (C, 1) char[Str.size()];
+  memcpy(AStrData, Str.data(), Str.size());
   StrData = AStrData;
-  ByteLength = Len;
+  ByteLength = Str.size();
 }
 
 /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it
diff --git a/lib/Frontend/PCHReaderStmt.cpp b/lib/Frontend/PCHReaderStmt.cpp
index 67b7c1f..4b9496e 100644
--- a/lib/Frontend/PCHReaderStmt.cpp
+++ b/lib/Frontend/PCHReaderStmt.cpp
@@ -380,8 +380,8 @@
   E->setWide(Record[Idx++]);
 
   // Read string data
-  llvm::SmallVector<char, 16> Str(&Record[Idx], &Record[Idx] + Len);
-  E->setStrData(*Reader.getContext(), Str.data(), Len);
+  llvm::SmallString<16> Str(&Record[Idx], &Record[Idx] + Len);
+  E->setString(*Reader.getContext(), Str.str());
   Idx += Len;
 
   // Read source locations