Rename all 'AssumeXXX' methods in libChecker
to 'assumeXXX'.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120614 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Checker/DereferenceChecker.cpp b/lib/Checker/DereferenceChecker.cpp
index bb40a84..747fcbe 100644
--- a/lib/Checker/DereferenceChecker.cpp
+++ b/lib/Checker/DereferenceChecker.cpp
@@ -107,7 +107,7 @@
 
   const GRState *state = C.getState();
   const GRState *notNullState, *nullState;
-  llvm::tie(notNullState, nullState) = state->Assume(location);
+  llvm::tie(notNullState, nullState) = state->assume(location);
 
   // The explicit NULL case.
   if (nullState) {