[llvm-objdump] Enable assembly highlighting in llvm-objdump

[JDevlieghere]

Summary

Enable assembly highlighting in llvm-objdump.

[JDevlieghere]

Merged with D159224.

llvm/include/llvm/Support/FormattedStream.h

raw_ostream &resetColor() override {
     return *this;
   }
 
   raw_ostream &reverseColor() override {
     TheStream->reverseColor();
     return *this;
   }
 
-  raw_ostream &changeColor(enum Colors Color, bool Bold, bool BG) override {
-    TheStream->changeColor(Color, Bold, BG);
-    return *this;
-  }
-
   bool is_displayed() const override {
     return TheStream->is_displayed();
   }
 
 private:
   void releaseStream() {
     // Transfer the buffer settings from this raw_ostream back to the underlying
     // stream.

llvm/test/tools/llvm-objdump/MachO/arm64-disassembly-color.s

+// RUN: llvm-mc -triple arm64-apple-macosx %s -filetype=obj -o %t
+// RUN: llvm-objdump --color --disassemble %t | FileCheck %s --check-prefix=COLOR
+// RUN: llvm-objdump --no-color --disassemble %t | FileCheck %s --check-prefix=NOCOLOR
+
+sub sp, sp, #16
+str w0, [sp, #12]
+ldr w8, [sp, #12]
+ldr w9, [sp, #12]
+mul w0, w8, w9
+add sp, sp, #16
+
+
+// COLOR: sub ␛[0;36msp, ␛[0;36msp, ␛[0;31m#0x10
+// COLOR: str ␛[0;36mw0, [␛[0;36msp, ␛[0;31m#0xc]
+// COLOR: ldr ␛[0;36mw8, [␛[0;36msp, ␛[0;31m#0xc]
+// COLOR: ldr ␛[0;36mw9, [␛[0;36msp, ␛[0;31m#0xc]
+// COLOR: mul ␛[0;36mw0, ␛[0;36mw8, ␛[0;36mw9
+// COLOR: add ␛[0;36msp, ␛[0;36msp, ␛[0;31m#0x10
+
+// NOCOLOR: sub sp, sp, #0x10
+// NOCOLOR: str w0, [sp, #0xc]
+// NOCOLOR: ldr w8, [sp, #0xc]
+// NOCOLOR: ldr w9, [sp, #0xc]
+// NOCOLOR: mul w0, w8, w9
+// NOCOLOR: add sp, sp, #0x10

llvm/tools/llvm-objdump/llvm-objdump.cpp

DisassemblerTarget::DisassemblerTarget(const Target *TheTarget, ObjectFile &Obj,
 
   int AsmPrinterVariant = AsmInfo->getAssemblerDialect();
   InstPrinter.reset(TheTarget->createMCInstPrinter(Triple(TripleName),
                                                    AsmPrinterVariant, *AsmInfo,
                                                    *InstrInfo, *RegisterInfo));
   if (!InstPrinter)
     reportError(Obj.getFileName(),
                 "no instruction printer for target " + TripleName);
+  InstPrinter->setUseColor(!NoColor);
   InstPrinter->setPrintImmHex(PrintImmHex);
   InstPrinter->setPrintBranchImmAsAddress(true);
   InstPrinter->setSymbolizeOperands(SymbolizeOperands);
   InstPrinter->setMCInstrAnalysis(InstrAnalysis.get());
 }
 
 DisassemblerTarget::DisassemblerTarget(DisassemblerTarget &Other,
                                        SubtargetFeatures &Features)