[analyzer; alternate arrows] The ForStmt increment is not a critical anchor for arrows.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181333 91177308-0d34-0410-b5e6-96231b3b80d8
[analyzer] Fix a crash triggered by printing a note on a default argument

Instead, use the location of the call to print the note.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181337 91177308-0d34-0410-b5e6-96231b3b80d8