Misc style fixes. NFC.

This fixes a few cases of:

* Wrong variable name style.
* Lines longer than 80 columns.
* Repeated names in comments.
* clang-format of the above.

This make the next patch a lot easier to read.

llvm-svn: 221615
diff --git a/llvm/lib/Target/X86/Disassembler/X86Disassembler.h b/llvm/lib/Target/X86/Disassembler/X86Disassembler.h
index 790c221..9f0346c 100644
--- a/llvm/lib/Target/X86/Disassembler/X86Disassembler.h
+++ b/llvm/lib/Target/X86/Disassembler/X86Disassembler.h
@@ -87,19 +87,15 @@
 
 namespace X86Disassembler {
 
-/// X86GenericDisassembler - Generic disassembler for all X86 platforms.
-///   All each platform class should have to do is subclass the constructor, and
-///   provide a different disassemblerMode value.
+/// Generic disassembler for all X86 platforms. All each platform class should
+/// have to do is subclass the constructor, and provide a different
+/// disassemblerMode value.
 class X86GenericDisassembler : public MCDisassembler {
   std::unique_ptr<const MCInstrInfo> MII;
 public:
-  /// Constructor     - Initializes the disassembler.
-  ///
   X86GenericDisassembler(const MCSubtargetInfo &STI, MCContext &Ctx,
                          std::unique_ptr<const MCInstrInfo> MII);
 public:
-
-  /// getInstruction - See MCDisassembler.
   DecodeStatus getInstruction(MCInst &instr, uint64_t &size,
                               const MemoryObject &region, uint64_t address,
                               raw_ostream &vStream,