Analysis: Canonicalize access to function attributes, NFC

Canonicalize access to function attributes to use the simpler API.

getAttributes().getAttribute(AttributeSet::FunctionIndex, Kind)
  => getFnAttribute(Kind)

getAttributes().hasAttribute(AttributeSet::FunctionIndex, Kind)
  => hasFnAttribute(Kind)

llvm-svn: 229192
diff --git a/llvm/lib/Analysis/MemoryDependenceAnalysis.cpp b/llvm/lib/Analysis/MemoryDependenceAnalysis.cpp
index fa67aeb..f0e7024 100644
--- a/llvm/lib/Analysis/MemoryDependenceAnalysis.cpp
+++ b/llvm/lib/Analysis/MemoryDependenceAnalysis.cpp
@@ -298,8 +298,7 @@
 
   // Load widening is hostile to ThreadSanitizer: it may cause false positives
   // or make the reports more cryptic (access sizes are wrong).
-  if (LI->getParent()->getParent()->getAttributes().
-      hasAttribute(AttributeSet::FunctionIndex, Attribute::SanitizeThread))
+  if (LI->getParent()->getParent()->hasFnAttribute(Attribute::SanitizeThread))
     return 0;
 
   // Get the base of this load.
@@ -344,9 +343,9 @@
         !DL.fitsInLegalInteger(NewLoadByteSize*8))
       return 0;
 
-    if (LIOffs+NewLoadByteSize > MemLocEnd &&
-        LI->getParent()->getParent()->getAttributes().
-          hasAttribute(AttributeSet::FunctionIndex, Attribute::SanitizeAddress))
+    if (LIOffs + NewLoadByteSize > MemLocEnd &&
+        LI->getParent()->getParent()->hasFnAttribute(
+            Attribute::SanitizeAddress))
       // We will be reading past the location accessed by the original program.
       // While this is safe in a regular build, Address Safety analysis tools
       // may start reporting false warnings. So, don't do widening.