rename getInstantiationLoc to match the scheme of isPhysicalLoc.

llvm-svn: 43969
diff --git a/clang/Basic/SourceManager.cpp b/clang/Basic/SourceManager.cpp
index 74e88c1..03fa203 100644
--- a/clang/Basic/SourceManager.cpp
+++ b/clang/Basic/SourceManager.cpp
@@ -185,7 +185,7 @@
     
     // The instanitation point and source physloc have to exactly match to reuse
     // (for now).  We could allow "nearby" instantiations in the future.
-    if (LastOne.getInstantiationLoc() != InstantLoc ||
+    if (LastOne.getVirtualLoc() != InstantLoc ||
         LastOne.getPhysicalLoc().getFileID() != PhysLoc.getFileID())
       continue;