Simple regression in recent changes. Some trace instr will have a null name.

enebo · enebo · commit f39a9eb70bd3 · 2017-12-14T13:18:28.000-06:00
Guard against it since it is a normal value.
diff --git a/core/src/main/java/org/jruby/ir/instructions/TraceInstr.java b/core/src/main/java/org/jruby/ir/instructions/TraceInstr.java
@@ -42,7 +42,7 @@ public RubyEvent getEvent() {
     }
 
     public String getName() {
-        return StringSupport.byteListAsString(name);
+        return name == null ? null : StringSupport.byteListAsString(name);
     }
 
     public String getFilename() {

Original file line number	Diff line number	Diff line change
`@@ -42,7 +42,7 @@ public RubyEvent getEvent() {`
`42`	`42`	`}`
`43`	`43`
`44`	`44`	`public String getName() {`
`45`		`- return StringSupport.byteListAsString(name);`
	`45`	`+ return name == null ? null : StringSupport.byteListAsString(name);`
`46`	`46`	`}`
`47`	`47`
`48`	`48`	`public String getFilename() {`