Adjust method calls to reflect name changes in
ImmutableSet/ImmtuableMap/ImmutableList APIs.

Along the way, clean up some method names in
the static analyzer so that they are more
descriptive and/or start with lowercase letters.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120071 91177308-0d34-0410-b5e6-96231b3b80d8
16 files changed