StringRegion::print: Remove copy/paste code and just call Stmt::printPretty() for the StringLiteral.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62340 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/MemRegion.cpp b/lib/Analysis/MemRegion.cpp
index c1b6ed3..72b1e0b 100644
--- a/lib/Analysis/MemRegion.cpp
+++ b/lib/Analysis/MemRegion.cpp
@@ -179,23 +179,7 @@
 }
 
 void StringRegion::print(llvm::raw_ostream& os) const {
-  if (Str->isWide()) os << 'L';
-  os << '"';
-
-  // FIXME: this doesn't print wstrings right.
-  for (unsigned i = 0, e = Str->getByteLength(); i != e; ++i) {
-    switch (Str->getStrData()[i]) {
-    default: os << Str->getStrData()[i]; break;
-    // Handle some common ones to make dumps prettier.
-    case '\\': os << "\\\\"; break;
-    case '"': os << "\\\""; break;
-    case '\n': os << "\\n"; break;
-    case '\t': os << "\\t"; break;
-    case '\a': os << "\\a"; break;
-    case '\b': os << "\\b"; break;
-    }
-  }
-  os << '"';
+  Str->printPretty(os);
 }
 
 //===----------------------------------------------------------------------===//