Replace SK_DEBUG-wrapped ABORT calls with SkDEBUGFAILF.

Change-Id: I4b11aaa8299a4aa2753097c26936e0176189f1db
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/364641
Commit-Queue: John Stiles <johnstiles@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
diff --git a/src/sksl/SkSLMetalCodeGenerator.cpp b/src/sksl/SkSLMetalCodeGenerator.cpp
index 9efdccb..8f1ca3c 100644
--- a/src/sksl/SkSLMetalCodeGenerator.cpp
+++ b/src/sksl/SkSLMetalCodeGenerator.cpp
@@ -218,9 +218,7 @@
             this->writeIndexExpression(expr.as<IndexExpression>());
             break;
         default:
-#ifdef SK_DEBUG
-            ABORT("unsupported expression: %s", expr.description().c_str());
-#endif
+            SkDEBUGFAILF("unsupported expression: %s", expr.description().c_str());
             break;
     }
 }
@@ -1784,9 +1782,7 @@
             this->write(";");
             break;
         default:
-#ifdef SK_DEBUG
-            ABORT("unsupported statement: %s", s.description().c_str());
-#endif
+            SkDEBUGFAILF("unsupported statement: %s", s.description().c_str());
             break;
     }
 }
@@ -2218,9 +2214,7 @@
         case ProgramElement::Kind::kEnum:
             break;
         default:
-#ifdef SK_DEBUG
-            ABORT("unsupported program element: %s\n", e.description().c_str());
-#endif
+            SkDEBUGFAILF("unsupported program element: %s\n", e.description().c_str());
             break;
     }
 }