Clean up the Spiller.h interface.

The earliestStart argument is entirely specific to linear scan allocation, and
can be easily calculated by RegAllocLinearScan.

Replace std::vector with SmallVector.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111055 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SplitKit.cpp b/lib/CodeGen/SplitKit.cpp
index b919f0d..a838706 100644
--- a/lib/CodeGen/SplitKit.cpp
+++ b/lib/CodeGen/SplitKit.cpp
@@ -342,7 +342,7 @@
 
 /// Create a new SplitEditor for editing the LiveInterval analyzed by SA.
 SplitEditor::SplitEditor(SplitAnalysis &sa, LiveIntervals &lis, VirtRegMap &vrm,
-                         std::vector<LiveInterval*> &intervals)
+                         SmallVectorImpl<LiveInterval*> &intervals)
   : sa_(sa), lis_(lis), vrm_(vrm),
     mri_(vrm.getMachineFunction().getRegInfo()),
     tii_(*vrm.getMachineFunction().getTarget().getInstrInfo()),