[send-non-sendable] Remove ASCII color from log output.

Not everyone uses color output and having to remove the ASCII color support is
annoying.

Author: gottesmm

include/swift/SILOptimizer/Utils/PartitionUtils.h

@@ -156,34 +156,19 @@ class PartitionOp {
     raw_ostream &os = llvm::errs();
     switch (OpKind) {
     case PartitionOpKind::Assign:
-      os.changeColor(llvm::raw_ostream::CYAN, true);
-      os << "assign";
-      os.resetColor();
-      os << " %%" << OpArgs[0] << " = %%" << OpArgs[1] << "\n";
+      os << "assign %%" << OpArgs[0] << " = %%" << OpArgs[1] << "\n";
       break;
     case PartitionOpKind::AssignFresh:
-      os.changeColor(llvm::raw_ostream::GREEN, true);
-      os << "assign_fresh";
-      os.resetColor();
-      os << " %%" << OpArgs[0] << "\n";
+      os << "assign_fresh %%" << OpArgs[0] << "\n";
       break;
     case PartitionOpKind::Consume:
-      os.changeColor(llvm::raw_ostream::RED, true);
-      os << "consume";
-      os.resetColor();
-      os << " %%" << OpArgs[0] << "\n";
+      os << "consume %%" << OpArgs[0] << "\n";
       break;
     case PartitionOpKind::Merge:
-      os.changeColor(llvm::raw_ostream::BLUE, true);
-      os << "merge";
-      os.resetColor();
-      os << " %%" << OpArgs[0] << " with %%" << OpArgs[1] << "\n";
+      os << "merge %%" << OpArgs[0] << " with %%" << OpArgs[1] << "\n";
       break;
     case PartitionOpKind::Require:
-      os.changeColor(llvm::raw_ostream::YELLOW, true);
-      os << "require";
-      os.resetColor();
-      os << " %%" << OpArgs[0] << "\n";
+      os << "require %%" << OpArgs[0] << "\n";
       break;
     }
   }

lib/SILOptimizer/Mandatory/SendNonSendable.cpp

@@ -885,14 +885,10 @@ class PartitionOpTranslator {
       //ignored instructions
       return {};
 
-    LLVM_DEBUG(
-        llvm::errs().changeColor(llvm::raw_ostream::MAGENTA, true);
-        llvm::errs() << "warning: ";
-        llvm::errs().resetColor();
-        llvm::errs() << "unhandled instruction kind "
-                     << getSILInstructionName(instruction->getKind())
-                     << "\n";
-    );
+    LLVM_DEBUG(llvm::errs() << "warning: ";
+               llvm::errs()
+               << "unhandled instruction kind "
+               << getSILInstructionName(instruction->getKind()) << "\n";);
 
     return {};
   }
@@ -1427,9 +1423,7 @@ class RaceTracer {
           working.apply(op);
           llvm::dbgs() << "│ ";
           if (working.isConsumed(consumedVal)) {
-            llvm::errs().changeColor(llvm::raw_ostream::RED, true);
             llvm::errs() << "(" << consumedVal << " CONSUMED) ";
-            llvm::errs().resetColor();
           }
           working.dump();
           return true;