Change the diagnostics interface to take an array of pointers to 
strings instead of array of strings.  This reduces string copying
in some not-very-important cases, but paves the way for future 
improvements.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59494 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Driver/TextDiagnosticPrinter.cpp b/lib/Driver/TextDiagnosticPrinter.cpp
index e0faf47..e03588b 100644
--- a/lib/Driver/TextDiagnosticPrinter.cpp
+++ b/lib/Driver/TextDiagnosticPrinter.cpp
@@ -96,7 +96,7 @@
                                              Diagnostic::Level Level, 
                                              FullSourceLoc Pos,
                                              diag::kind ID,
-                                             const std::string *Strs,
+                                             const std::string **Strs,
                                              unsigned NumStrs,
                                              const SourceRange *Ranges,
                                              unsigned NumRanges) {