Rename isHotFunction/isColdFunction to isFunctionEntryHot/isFunctionEntryCold. (NFC)

This is in preparation for https://reviews.llvm.org/D25048

llvm-svn: 283805
diff --git a/llvm/lib/Analysis/InlineCost.cpp b/llvm/lib/Analysis/InlineCost.cpp
index a9d628d..d820069 100644
--- a/llvm/lib/Analysis/InlineCost.cpp
+++ b/llvm/lib/Analysis/InlineCost.cpp
@@ -647,14 +647,14 @@
   // when it would increase the threshold and the caller does not need to
   // minimize its size.
   bool InlineHint = Callee.hasFnAttribute(Attribute::InlineHint) ||
-                    PSI->isHotFunction(&Callee);
+                    PSI->isFunctionEntryHot(&Callee);
   if (InlineHint && !Caller->optForMinSize())
     Threshold = MaxIfValid(Threshold, Params.HintThreshold);
 
   if (HotCallsite && !Caller->optForMinSize())
     Threshold = MaxIfValid(Threshold, Params.HotCallSiteThreshold);
 
-  bool ColdCallee = PSI->isColdFunction(&Callee);
+  bool ColdCallee = PSI->isFunctionEntryCold(&Callee);
   // For cold callees, use the ColdThreshold knob if it is available and reduces
   // the threshold.
   if (ColdCallee)