[ORE] Use LLVM's "diagnostics hotness" spelling

Summary:
Depends on https://reviews.llvm.org/D34864.

To unify Clang and LLVM's spelling of "diagnostic[s] hotness", use the
new "diagnostics hotness" spelling in LLVM, which was added in
https://reviews.llvm.org/D34864.

Reviewers: anemet, davidxl

Reviewed By: anemet

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D34865

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@306862 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/CodeGenAction.cpp

@@ -228,7 +228,7 @@ namespace clang {
           Ctx.getDiagnosticHandler();
       void *OldDiagnosticContext = Ctx.getDiagnosticContext();
       Ctx.setDiagnosticHandler(DiagnosticHandler, this);
-      Ctx.setDiagnosticHotnessRequested(CodeGenOpts.DiagnosticsWithHotness);
+      Ctx.setDiagnosticsHotnessRequested(CodeGenOpts.DiagnosticsWithHotness);
 
       std::unique_ptr<llvm::tool_output_file> OptRecordFile;
       if (!CodeGenOpts.OptRecordFile.empty()) {
@@ -246,7 +246,7 @@ namespace clang {
             llvm::make_unique<yaml::Output>(OptRecordFile->os()));
 
         if (CodeGenOpts.getProfileUse() != CodeGenOptions::ProfileNone)
-          Ctx.setDiagnosticHotnessRequested(true);
+          Ctx.setDiagnosticsHotnessRequested(true);
       }
 
       // Link each LinkModule into our module.