Improve the diagnostic of DiagnosticInfoResourceLimit (and warn-stack-size in particular)

Before: `warning: stack size limit exceeded (888) in main`
After: `warning: stack frame size (888) exceeds limit (100) in function 'main'` (the -Wframe-larger-than limit will be mentioned)

Reviewed By: nickdesaulniers

Differential Revision: https://reviews.llvm.org/D104667