[NFC] fix trivial typos in comments

llvm-svn: 352602
diff --git a/llvm/lib/Analysis/ValueTracking.cpp b/llvm/lib/Analysis/ValueTracking.cpp
index 06b0bd7..eb49f90 100644
--- a/llvm/lib/Analysis/ValueTracking.cpp
+++ b/llvm/lib/Analysis/ValueTracking.cpp
@@ -4354,7 +4354,7 @@
 }
 
 bool llvm::isGuaranteedToTransferExecutionToSuccessor(const BasicBlock *BB) {
-  // TODO: This is slightly consdervative for invoke instruction since exiting
+  // TODO: This is slightly conservative for invoke instruction since exiting
   // via an exception *is* normal control for them.
   for (auto I = BB->begin(), E = BB->end(); I != E; ++I)
     if (!isGuaranteedToTransferExecutionToSuccessor(&*I))