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
diff --git a/lldb/source/Symbol/SymbolVendor.cpp b/lldb/source/Symbol/SymbolVendor.cpp
index f5a0873..fd73188 100644
--- a/lldb/source/Symbol/SymbolVendor.cpp
+++ b/lldb/source/Symbol/SymbolVendor.cpp
@@ -26,9 +26,9 @@
 //----------------------------------------------------------------------
 // FindPlugin
 //
-// Platforms can register a callback to use when creating symbol
-// vendors to allow for complex debug information file setups, and to
-// also allow for finding separate debug information files.
+// Platforms can register a callback to use when creating symbol vendors to
+// allow for complex debug information file setups, and to also allow for
+// finding separate debug information files.
 //----------------------------------------------------------------------
 SymbolVendor *SymbolVendor::FindPlugin(const lldb::ModuleSP &module_sp,
                                        lldb_private::Stream *feedback_strm) {
@@ -45,8 +45,8 @@
       return instance_ap.release();
     }
   }
-  // The default implementation just tries to create debug information using the
-  // file representation for the module.
+  // The default implementation just tries to create debug information using
+  // the file representation for the module.
   instance_ap.reset(new SymbolVendor(module_sp));
   if (instance_ap.get()) {
     ObjectFile *objfile = module_sp->GetObjectFile();
@@ -88,11 +88,11 @@
     std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex());
     const size_t num_compile_units = GetNumCompileUnits();
     if (idx < num_compile_units) {
-      // Fire off an assertion if this compile unit already exists for now.
-      // The partial parsing should take care of only setting the compile
-      // unit once, so if this assertion fails, we need to make sure that
-      // we don't have a race condition, or have a second parse of the same
-      // compile unit.
+      // Fire off an assertion if this compile unit already exists for now. The
+      // partial parsing should take care of only setting the compile unit
+      // once, so if this assertion fails, we need to make sure that we don't
+      // have a race condition, or have a second parse of the same compile
+      // unit.
       assert(m_compile_units[idx].get() == nullptr);
       m_compile_units[idx] = cu_sp;
       return true;
@@ -111,10 +111,10 @@
     std::lock_guard<std::recursive_mutex> guard(module_sp->GetMutex());
     if (m_compile_units.empty()) {
       if (m_sym_file_ap.get()) {
-        // Resize our array of compile unit shared pointers -- which will
-        // each remain NULL until someone asks for the actual compile unit
-        // information. When this happens, the symbol file will be asked
-        // to parse this compile unit information.
+        // Resize our array of compile unit shared pointers -- which will each
+        // remain NULL until someone asks for the actual compile unit
+        // information. When this happens, the symbol file will be asked to
+        // parse this compile unit information.
         m_compile_units.resize(m_sym_file_ap->GetNumCompileUnits());
       }
     }