Replace APFloatBase static fltSemantics data members with getter functions

At least the plugin used by the LibreOffice build
(<https://wiki.documentfoundation.org/Development/Clang_plugins>) indirectly
uses those members (through inline functions in LLVM/Clang include files in turn
using them), but they are not exported by utils/extract_symbols.py on Windows,
and accessing data across DLL/EXE boundaries on Windows is generally
problematic.

Differential Revision: https://reviews.llvm.org/D26671

llvm-svn: 289647
diff --git a/clang/lib/Frontend/InitPreprocessor.cpp b/clang/lib/Frontend/InitPreprocessor.cpp
index b95741b..31340e0 100644
--- a/clang/lib/Frontend/InitPreprocessor.cpp
+++ b/clang/lib/Frontend/InitPreprocessor.cpp
@@ -112,15 +112,15 @@
 static T PickFP(const llvm::fltSemantics *Sem, T IEEESingleVal,
                 T IEEEDoubleVal, T X87DoubleExtendedVal, T PPCDoubleDoubleVal,
                 T IEEEQuadVal) {
-  if (Sem == (const llvm::fltSemantics*)&llvm::APFloat::IEEEsingle)
+  if (Sem == (const llvm::fltSemantics*)&llvm::APFloat::IEEEsingle())
     return IEEESingleVal;
-  if (Sem == (const llvm::fltSemantics*)&llvm::APFloat::IEEEdouble)
+  if (Sem == (const llvm::fltSemantics*)&llvm::APFloat::IEEEdouble())
     return IEEEDoubleVal;
-  if (Sem == (const llvm::fltSemantics*)&llvm::APFloat::x87DoubleExtended)
+  if (Sem == (const llvm::fltSemantics*)&llvm::APFloat::x87DoubleExtended())
     return X87DoubleExtendedVal;
-  if (Sem == (const llvm::fltSemantics*)&llvm::APFloat::PPCDoubleDouble)
+  if (Sem == (const llvm::fltSemantics*)&llvm::APFloat::PPCDoubleDouble())
     return PPCDoubleDoubleVal;
-  assert(Sem == (const llvm::fltSemantics*)&llvm::APFloat::IEEEquad);
+  assert(Sem == (const llvm::fltSemantics*)&llvm::APFloat::IEEEquad());
   return IEEEQuadVal;
 }