Fixed a nasty layering violation in the edis source

code.  It used to #include the enhanced disassembly
information for the targets it supported straight
out of lib/Target/{X86,ARM,...} but now it uses a
new interface provided by MCDisassembler, and (so
far) implemented by X86 and ARM.

Also removed hacky #define-controlled initialization
of targets in edis.  If clients only want edis to
initialize a limited set of targets, they can set
--enable-targets on the configure command line.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101179 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/MC/MCDisassembler.h

@@ -16,6 +16,8 @@ namespace llvm {
 class MCInst;
 class MemoryObject;
 class raw_ostream;
+  
+struct EDInstInfo;
 
 /// MCDisassembler - Superclass for all disassemblers.  Consumes a memory region
 ///   and provides an array of assembly instructions.
@@ -43,7 +45,15 @@ public:
                                        const MemoryObject &region,
                                        uint64_t address,
                                        raw_ostream &vStream) const = 0;
-};  
+
+  /// getEDInfo - Returns the enhanced insturction information corresponding to
+  ///   the disassembler.
+  ///
+  /// @return         - An array of instruction information, with one entry for
+  ///                   each MCInst opcode this disassembler returns.
+  ///                   NULL if there is no info for this target.
+  virtual EDInstInfo   *getEDInfo() const { return NULL; }
+};
 
 } // namespace llvm