Reflow paragraphs in comments.

This is intended as a clean up after the big clang-format commit
(r280751), which unfortunately resulted in many of the comment
paragraphs in LLDB being very hard to read.

FYI, the script I used was:

import textwrap
import commands
import os
import sys
import re
tmp = "%s.tmp"%sys.argv[1]
out = open(tmp, "w+")
with open(sys.argv[1], "r") as f:
  header = ""
  text = ""
  comment = re.compile(r'^( *//) ([^ ].*)$')
  special = re.compile(r'^((([A-Z]+[: ])|([0-9]+ )).*)|(.*;)$')
  for line in f:
      match = comment.match(line)
      if match and not special.match(match.group(2)):
          # skip intentionally short comments.
          if not text and len(match.group(2)) < 40:
              out.write(line)
              continue

          if text:
              text += " " + match.group(2)
          else:
              header = match.group(1)
              text = match.group(2)

          continue

      if text:
          filled = textwrap.wrap(text, width=(78-len(header)),
                                 break_long_words=False)
          for l in filled:
              out.write(header+" "+l+'\n')
              text = ""

      out.write(line)

os.rename(tmp, sys.argv[1])

Differential Revision: https://reviews.llvm.org/D46144

llvm-svn: 331197

lldb/source/Expression/ExpressionSourceCode.cpp

@@ -93,15 +93,15 @@ public:
       m_state = CURRENT_FILE_POPPED;
   }
 
-  // An entry is valid if it occurs before the current line in
-  // the current file.
+  // An entry is valid if it occurs before the current line in the current
+  // file.
   bool IsValidEntry(uint32_t line) {
     switch (m_state) {
     case CURRENT_FILE_NOT_YET_PUSHED:
       return true;
     case CURRENT_FILE_PUSHED:
-      // If we are in file included in the current file,
-      // the entry should be added.
+      // If we are in file included in the current file, the entry should be
+      // added.
       if (m_file_stack.back() != m_current_file)
         return true;