Mega-patch: ripped SourceManager out of Diagnostic/DiagnosticClient.  Now
SourceManager is passed by reference, allowing the SourceManager to be
associated with a specific translation unit, and not the entire execution
of the driver.

Modified all users of Diagnostics to comply with this new interface.

Integrated SourceManager as a member variable of TargetInfo. TargetInfo will
eventually be associated with a single translation unit (just like
SourceManager).

Made the SourceManager reference in ASTContext private. Provided accessor
getSourceManager() for clients to use instead. Modified clients to comply with
new interface.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@44878 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/Driver/TextDiagnosticPrinter.h b/Driver/TextDiagnosticPrinter.h
index beb9d80..c87c20e 100644
--- a/Driver/TextDiagnosticPrinter.h
+++ b/Driver/TextDiagnosticPrinter.h
@@ -24,17 +24,20 @@
 class TextDiagnosticPrinter : public TextDiagnostics {
   SourceLocation LastWarningLoc;
 public:
-  TextDiagnosticPrinter(SourceManager &sourceMgr)
-    : TextDiagnostics(sourceMgr) {}
+  TextDiagnosticPrinter() {}
 
-  void PrintIncludeStack(SourceLocation Pos);
-  void HighlightRange(const SourceRange &R, unsigned LineNo,
+  void PrintIncludeStack(SourceLocation Pos, SourceManager& SrcMgr);
+  void HighlightRange(const SourceRange &R,
+                      SourceManager& SrcMgr,
+                      unsigned LineNo,
                       std::string &CaratLine,
                       const std::string &SourceLine);
 
   virtual void HandleDiagnostic(Diagnostic &Diags, Diagnostic::Level DiagLevel,
                                 SourceLocation Pos,
-                                diag::kind ID, const std::string *Strs,
+                                diag::kind ID,
+                                SourceManager& SrcMgr,
+                                const std::string *Strs,
                                 unsigned NumStrs,
                                 const SourceRange *Ranges, 
                                 unsigned NumRanges);