[PATCH] D25982: [PP] Replace some index based for loops with range based ones

[Erik Verbruggen via cfe-commits]

erikjv created this revision.
erikjv added a reviewer: bkramer.
erikjv added a subscriber: cfe-commits.
Herald added subscribers: anna, nemanjai.

While in the area, also change some unsigned variables to size_t, and
introduce an LLVM_FALLTHROUGH instead of a comment stating that.


https://reviews.llvm.org/D25982

Files:
  lib/Lex/PPCaching.cpp
  lib/Lex/PPLexerChange.cpp
  lib/Lex/PPMacroExpansion.cpp
  lib/Lex/Pragma.cpp
  lib/Lex/TokenConcatenation.cpp
  lib/Lex/TokenLexer.cpp

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